You must not smoke here.

I have to do my homework.

Mr. Ikeda is my Japanese teacher.

You shouldn't do such a thing.

This word has an allomorph.

What do you call 'time' in dialect?

I've been waiting for hours at that shop, but the meal still hasn't come out.

I exercise at the gym for two hours every day.

Have you checked the timetable for the new semester?

He is good at keeping fish alive.