You can’t / have to use a credit card to pay your bus fare!
Can't
When I was a child I have to / had to / must wear glasses
Had to
We had to / must get up early yesterday.
Had to
You mustn’t / don’t have to wear expensive clothes to look good.
Don’t have to
When I was a kid I can / could / couldn’t see very well.
Couldn't
I couldn’t / mustn’t believe it when someone stole my purse.
Couldn’t
Now I mustn’t / don’t have to / didn’t have to wear glasses because I can see.
Don’t have to
I didn’t have to / mustn’t call Mike because he sent me a message.
Didn’t have to