Consider the following examples:
As a teacher I have to  get up early on work days because I have to  be in class at 8 o'clock. I drive to work, although I should  probably use a motorcycle, which is faster and more convenient in Bali.
When I was a musician I didn't have to  get up early, but I had to  be on stage most evenings at 8 o'clock. I had to  drive to gigs because I had to  carry many drums. I know what you're thinking - I should've chosen a smaller instrument like the violin. Yes, but then I would have had to  play the violin!
In which situations did I have a choice? (show)
In which situations did I NOT have a choice? (show)
In the present:
In the past: