Correcting a grammar of yours is very simple...
I will not take it too long to answer but I'll give you the main topics of having a proper grammar usage :)
You must learn these ff. lessons to complete your task...
First,correct your subject verb agreement.
Second,constructing a sentence with a subject and predicate.
Third,do you know that sentences had voices too?Learn more about Passive and Active Voice.
Fourth,capitalization rules remember?Proper usage of Capitalization
Last,we know Punctuation Rules baffles many of us...the important features of Punctuation Marks...
Hope this Helps:)