Signs he’s gaslighting me…any examples? PLEASE HELP.

I believe my boyfriend is abusive towards me and is gaslighting me, but I’m not 100% sure. I’m very confused and question it a lot.

Can you please give me some examples of gaslighting.

Also, if you have experience with this may you please tell me some things he/she has done/said to you.

This will really help me put the pieces together I think.

Thank you in advance.