Using "can" & "could" to show ability
When I was young I ____________ talk, but now I _________ .
When I was young, I couldn't talk, but now I can.
I don't feel tired, so I _________ drive now.
I don't feel tired, so I can drive now.
My neighbor asked me to help him move, but I ______________ help.
My neighbor asked me to help him move, but I couldn't help.