I'm at the hospital. I got struck by lightning.

Can I pay by credit card?

We are haunted by an ideal life, and it is because we have within us the beginning and the possibility for it.

It was raining when we left, but by the time we arrived, it was sunny.

We left by train.

Did you do your homework by yourself?

Did you break the window on purpose or by accident?

You'd better go by bus.

How did you come by this money?

What time is it by your watch?