Conjunctions of Cause and Effect

used for introducing the reason of something

He got a promotion because he worked hard.

used to express a period from a specific past time up to now or another specified point

I've felt better since I've been here.

to such a large or extreme extent, often expressing intensity or quantity

The music was so loud I couldn't hear myself think.

(formal) in or into that thing or place

at this moment or time

I am cooking dinner now, but we can watch a movie after dinner.

to notice a thing or person with our eyes

Did you see that shooting star just now?