The majority of the parts in a starship will have their origins in terminology used for sailing ships of the past. Learn those, you'll have the majority of analogous parts in a starship.
Word List: Definitions of Nautical Terms and Ship Parts Nautical Terminology
As for the grammatical aspect... as a writer, always pay attention to such things, no matter how fast you're writing, or where you're writing. If you do not pay attention to this when posting, you'll find that you slip-up when doing your more serious writing; it will continue to trip you up. Writing is not easy... not if you want it to be good. It takes practicing all these things consistently, not intermittently.