Why the word is not use the root form of a verb?
We all in do not camouflage, dismounts that matter useless attire to accommodate,
at least in us, replies original most really own!

why they use “ dismounts” “replies” rather than “ dismount” “ reply”?

Question

Why the word is not use the root form of a verb?
We all in do not camouflage, dismounts that matter useless attire to accommodate, 
at least in us, replies original most really own!

why they use “ dismounts” “replies”  rather than “ dismount” “ reply”?

Answer

The text is nonsense.

Answer

The text you posted doesn't make any sense.  There are many, many grammar mistakes, and I have no idea what the writer is trying to say.