The person at Stage 5 learns to use the articles a and the. The concept of past tense becomes more refined. They learn that some verbs are irregular and don’t use -ed as a past tense ending. All this happens by listening, experimenting, and attending to good models. The person begins to use verbs that end in -s for third person regular present tense.
|Approx. Vocab. Size||Utterance Length in Morphemes*||Examples|
|2,000 to 3,000 words||Range: 3.75 to 4.5 Mean: 4.0||Mom is coming in. Dad will help me. Look at it go. Those are my cars.|
*a morpheme is the smallest unit of meaning in a language