1. I haven't picked up trash, I haven't collected signatures (neither...nor) My answer: I haven't neither picked up trash nor I haven't collected signatures **Correct answer: I have neither picked up the trash nor have I collected signatures. You use have instead of haven't because neither is already a negative, so you wouldn't combine two negatives of neither and haven't. 2. I'd like to make phone calls. I'd like to donate money (Either...or) My answer: I'd like either make phone calls or donate money *Perfect! 3. I planted flowers and trees in my neighborhood, I helped clean up the park (Not only...but also) My answer: Not only I planted flowers and trees in my neighborhood, but I also helped clean up the park **Correct answer: Not only have I planted flowers and trees in my neighborhood, I have also helped clean up the park. Don't forget to include "have" in this sentence. It will always be necessary in "not only...but also" sentences. For the "not only" part of the sentence you will say "have I" and for the "but also" part you will say "I have". Example: Not only have I washed the windows but I have also mopped the floor. Please feel free to come to me for any further explanations!