So, useful because it helps you to expand your vocabulary. You read more often like wide and broad. You mimic in terms of fluency speaking.
Why is English language dynamic?
Eg.. i) Cut to your coat according to your size
( wrong)
ii) Cut your coat according to your coat (right)
Example2 i) How are you? ( when talking to one person is wrong)
ii) How is you? ( right when is one person)