Is it normal if a 33 month old is not yet good in speaking and can not constract a simple sentence?

May mga letters na hindi pa nila kayang i-pronounce, like letters L, R, and W. Okay lang yung medyo bulol. But if hindi clear as in mahirap intindihin, kailangan tutukan. Less or, if possible, no screen time. 'Wag din i-baby talk at tulungan mag-construct ng sentence. Tapos mag-word activity kayo, pwedeng word of the day and practice phonics. Kaya mo yan, Mamsh. 😊