Yes example
friend 1: do you wanna come to the pub?
Friend 2:
yeah nah I will
see you there bout 7
No example
Friend 1: do you wanna come to the pub?
Friend 2: yeah nah I can't tonight I have work early eh
Maybe example
Friend 1 do you wanna come to the pub?
Friend 2: yeah nah I will have to check with the mrs