Forgive me, if I have hurt you knowingly or unknowingly, if I ignored you intentionally or unintentionally.
If I said something bad about you directly or through someone else.
I'm sorry for all the pain I caused you and if you cried any day/at any time or felt bad because of me.
It's better to clear our souls so that our fasts and duas be accepted. [<-- good use of subjunctive.]
I will do the same for you.