Question: what are the different stages of language development?
Answer: The prelinguistic stage. During the first year of life the child is in a prespeech stage. ... 
The holophrase or one-word sentence. The child usually reaches this phase between the age of 10 and 13 months. ... 
The two-word sentence. By 18 months the child reaches this stage. ... 
Multiple-word sentences. ... 
Adult-like language structures.