Dear madam

My son has crossed 3 yrs but he can not speak everything clearly. Pls suggest.

Read books for your kid. Ask him few questions let him answer. Sing rhymes along, give your kid time to listen to stories and ask questions. Let him reply to you. Please read this article
5 Fun ways to get your baby talking early

Happens ..not to worry...tell stories and sing along ...gradually will happen

Promoting Speech & Language In Infants!