Table 4.
Sample utterances coded for morpheme type, accuracy, sentence position, and allomorph type.
| Morpheme | Sample utterance | Accuracy | Sentence position | Allomorph type |
|---|---|---|---|---|
| Plural –s | Two snake. | Omitted | Final | /s/ |
| Make some eggs. | Correct | Final | /z/ | |
| Possessive | Elmo's daddy. | Correct | Medial | /z/ |
| Bert nose. | Omitted | Medial | /s/ | |
| Third singular | He jumps. | Correct | Final | /s/ |
| It go fast. | Omitted | Medial | /z/ | |
| Copula is | This my bowl. | Omitted | Medial | /ɪz/ |
| Ernie's all gone. | Correct | Medial | /z/ | |
| That's mine. | Correct | Medial | /s/ | |
| Auxiliary is | He coloring. | Omitted | Medial | /z/ |
| He is jumping. | Correct | Medial | /ɪz/ | |
| This going to be the big one. | Omitted | Medial | /ɪz/ |