deduction, speculation

I used to be really good at tennis, I was an under-14 champion, but I gave it all up.

I drove home even though i was falling asleep at the wheel.

I didn't feel like going to work, so i phoned in sick. I went shopping instead.

I had a temperature of 102F (38C), but I went out dancing all night.

I went walking in the mountain for three days with no food or equipment.

I told Sally I couldn't see her, then went out to the pub with Danielle.