Phonology
language’s sound system. When people grow up, they lose the ability to form certain sounds, which causes accents.
Morphology
how we put sounds together to make words
Syntax
how we combine words to form acceptable phrases and sentences
Semantics
the meaning of a word.
Biological influences of language
In Chomsky’s study, humans are biologically designed to learn language is a certain way, people in different countries and societies still learn around the same time. If you don’t learn your first language within the first 13 years, you will never learn a language.