after- I will meet you after the break.
as soon as -As soon as I boarded the bus then it started.
by the time- By the time I reached the station It left the platform.
before- I get up before her.
while- While I waited for the bus, she smiled at me.
when- When the bell rang, then he came out of the class.
until- Until it get dark she would not light the candle.
whenever - Whenever I call her she responded with a smile.