E.g: Lana arrived early in order that she could help us put up decorations for the party.

in order that/ so that

to explain why someone does something

The marriage ceremony went well eventhough it started a bit late.

though/ although/ eventhough/ while

to express contrast

They are so hurry that they almost forget to lock the door.

so...that/ such...that/so

to express the result of an action/ event

I bought an extra ticket to the book fair in case my brother wanted to go

if - unless - as/so long as - provided that - in case

to express a hypothesis/ a condition

My brother's favourite football club is MU because CR7 plays for this team.

because - now (that) - since - as - for - seeing that

to explain why something happens

The Songkran this year is more crowded than the one we attended last year.

as - than

to compare two things/ ideas

We didn't light the birthday candles until Harry had entered the room.

before - after - when - while - until - as soon as

to express the time when an action takes place.

Steve talks as if he knows everyone at the longevity

as - as if - as though

to express the way in which something is said/done