What do you need done meaning?
Likewise, people ask, what I need or needed?
We can say the past "needed" is correct. However, if this is a fact or something that is true at present, some could end up having a difficult time understanding why "needed", a past form, is correct. Use "needed". That could apply to past or present.
Furthermore, how do you use get it done? What's the use to say 'get it done' if you can say just 'do it'? I think you are hearing things wrong. The correct sentence might be, "I hope you can get it repaired."(future tense) or maybe, "I hope you got it repaired" (past tense) or maybe, "I hope you can repair this" (present tense).
Furthermore, what I am done means?
I am done means “I quit.” It is an exclamation that is typically made when the speaker is frustrated, or otherwise exhausted, and has reached their breaking point. It is an exclamation that is typically made when the speaker is frustrated, or otherwise exhausted, and has reached their breaking point.
Should have done meaning?
When you say "Should have done it", it means pretty much what you said "you were supposed to do it", and it generally implies that "you did not do it".