Children as young as 2 years old use modal verbs rather frequently in their spontaneous speech. But do these early modal verbs already have the same semantic, morphological, and syntactic characteristics as in adult speech? I answer this questions through the investigation of corpus data. Lire la suite
Dutch modal verbs, kunnen ('can'), moeten (‘must’), mogen (‘may’),
willen (‘will’/‘want’), zullen (‘shall’/‘will’), and hoeven (‘need’) are
complex, semantically, morphologically, and syntactically. Therefore,
one could expect that modals occur only rarely in early child language.
Surprisingly however, children as young as 2 years old use modal verbs
rather frequently in their spontaneous speech. But do these early modal
verbs already have the same semantic, morphological, and syntactic
characteristics as in adult speech? I answer this questions through
the investigation of corpus data, focusing on form and structure, and
through the analysis of experimental data, focusing on the meanings
of Dutch modals. Looking into the acquisition of modal verbs not only
gives insight in how children build complex utterances, but also in how
cognitive notions as necessity and possibility develop linguistically.
1. Introduction ................................................................................................ 7
1.1. What is it all about ? ........................................................................... 7
1.2. What to expect in this book ? .............................................................. 9
1.3. Good to know .................................................................................... 10
2. Modality : Modal categories, expressions, and their acquisition ............ 12
2.1. Definition of modality ....................................................................... 12
2.1.1. Modality and subjectivity ........................................................ 13
2.1.2. Modality and non-factuality .................................................... 14
2.1.3. Necessity and possibility ......................................................... 15
2.2. Categorization of modality ................................................................ 16
2.2.1. Epistemic versus non-epistemic modality ............................... 16
2.2.2. Deontic versus dynamic modality ........................................... 18
2.2.3. Situational modality................................................................. 20
2.2.4. Other categories : evidentiality, volition, intention ................. 21
2.2.5. Schedule of modal meanings ................................................... 22
2.3. Expression of modality in Dutch....................................................... 23
2.3.1. Overview of modal expressions in Dutch ................................ 23
2.3.2. Modal verbs in Dutch .............................................................. 26
2.4. Acquisition of modality .................................................................... 37
2.4.1. Acquisition of modal meanings ............................................... 38
2.4.2. Acquisition of modal expressions ............................................ 41
2.4.3. Theoretical accounts for the acquisition of modality ............... 44
2.5. Summary and conclusion .................................................................. 50
3. Verbs : The Dutch verbal system and its acquisition .............................. 51
3.1. Finiteness in Dutch ........................................................................... 51
3.1.1. Inflectional morphology .......................................................... 52
3.1.2. Sentence position ..................................................................... 55
3.2. Verb combinations ............................................................................ 58
3.2.1. Tense auxiliaries ...................................................................... 58
3.2.2. Dummy auxiliaries .................................................................. 59
3.2.3. Modal verbs ............................................................................. 59
3.2.4. Schedule of verb combinations ................................................ 62
3.3. Acquisition of verbs, finiteness, and related aspects in Dutch .......... 64
Mo d a l ve r bs i n Dut c h f i r s t l a n g ua g e a cq u i s i t i o n
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3.3.1. Different states in the acquisition of finiteness ....................... 64
3.3.2. Theoretical accounts for the acquisition of finiteness ............. 74
3.4. Summary and conclusion.................................................................. 82
4. Expectations and research questions ....................................................... 84
4.1. Expectations ..................................................................................... 84
4.1.1. First appearance and frequency of modal verbs / modal
meanings ................................................................................. 84
4.1.2. Form, structures, and contexts of modal verbs ........................ 85
4.2. Research questions ........................................................................... 86
4.3. How the questions will be investigated ............................................ 86
4.3.1. Corpus data ............................................................................. 86
4.3.2. Experimental data ................................................................... 87
5. Corpus study : General overview of modal verbs ................................... 88
5.1. Method.............................................................................................. 88
5.1.1. Corpus ..................................................................................... 88
5.1.2. General analysis ...................................................................... 90
5.2. Results : Overall sketch .................................................................... 92
5.2.1. Modal verbs : First appearance and frequency ........................ 92
5.2.2. Modal verbs versus hebben, zijn, and doen ............................. 97
5.2.3. Modal verbs in the input and in adult language ...................... 97
5.3. General overview : Summary and discussion ................................. 100
5.3.1. First appearance and frequency ............................................. 100
5.3.2. Differences between modal verbs ......................................... 101
5.4. Exploratory analysis of the meanings of modal verbs in child
language ........................................................................................ 102
5.4.1. Method .................................................................................. 102
5.4.2. Results : Meanings of modal verbs ....................................... 104
5.4.3. Exploratory semantic analysis : Summary and discussion .... 106
6. Corpus study : Forms, structures, and contexts of modal verbs ............ 109
6.1. Method............................................................................................ 109
6.1.1. Corpus ................................................................................... 109
6.1.2. In-depth analysis ................................................................... 111
6.1.3. Follow-up analyses ............................................................... 116
6.2. Results : Forms, structures, and contexts ........................................ 119
6.2.1. Finiteness and formal variety ................................................ 119
6.2.2. Syntactic structure and infinitive type ................................... 124
6.2.3. Contexts, constructs, and constructions ................................ 128
6.3. Forms, structures, and contexts : Summary and discussion ............ 132
Ta bl e of co n te n t s
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6.3.1. Summary and discussion of the main results ......................... 132
6.3.2. Two directions of explanation ............................................... 136
7. Experimental study : Comprehension tasks .......................................... 138
7.1. Method ............................................................................................ 138
7.1.1. Subjects ................................................................................. 138
7.1.2. General testing procedure ...................................................... 139
7.1.3. Truth value judgment task ..................................................... 141
7.1.4. Picture selection task ............................................................. 145
7.2. Results experiment 1 : Truth value judgment task .......................... 149
7.2.1. Control data (adults) .............................................................. 149
7.2.2. Child data .............................................................................. 151
7.2.3. Comparison between child and control data .......................... 153
7.2.4. Correlation with age .............................................................. 155
7.2.5. Interactions ............................................................................ 156
7.3. Results experiment 2 : Picture selection task .................................. 161
7.3.1. Control data (adults) .............................................................. 161
7.3.2. Child data .............................................................................. 163
7.3.3. Correlation with age .............................................................. 165
7.4. Comprehension tasks : Summary and discussion ........................... 166
7.4.1. Summary and discussion of the main results ......................... 166
7.4.2. Two directions of explanation ............................................... 169
8. Experimental study : Production task ................................................... 173
8.1. Method ............................................................................................ 173
8.1.1. Subjects and general testing procedure.................................. 173
8.1.2. Story retelling task ................................................................. 173
8.2. Results experiment 3 : Story retelling task...................................... 179
8.2.1. Control data (adults) .............................................................. 179
8.2.2. Child data .............................................................................. 181
8.2.3. Comparison between child and control data .......................... 183
8.2.4. Correlations ........................................................................... 185
8.2.5. Interactions ............................................................................ 187
8.2.6. Characteristics of the modal verbs ......................................... 189
8.2.7. Excluded items : hoeven and zullen ....................................... 191
8.2.8. Alternative strategies ............................................................. 192
8.3. Production task : Summary and discussion ..................................... 198
8.3.1. Summary and discussion of the main results ......................... 198
8.3.2. Two directions of explanation ............................................... 202
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9. General discussion ................................................................................. 205
9.1. Research answers............................................................................ 205
9.1.1. General overview of modal verbs in Dutch child language .. 205
9.1.2. Formal, syntactic, and contextual characteristics of modal verbs
in child language ................................................................... 206
9.1.3. Meanings of modal verbs in child language .......................... 207
9.2. Back to the expectations ................................................................. 208
9.2.1. Form and structure of modal verbs ....................................... 208
9.2.2. Meanings of modal verbs ...................................................... 209
9.3. A broader perspective ..................................................................... 211
References ...................................................................................................... 214
Appendix ...................................................................................................... 229
A: Truth value judgment task: test material ................................................ 229
B: Picture selection task: test material ........................................................ 233
C: Story retelling task: test material ............................................................ 235