CONNECTORS

BECAUSE, SO, AS, SINCE

Use these connectors to link an action

with its purpose.

• We went home early, because / as / since we felt tired.

• We felt tired, so, we went home early.

but, although, however

Use these

connectors to make

contrasts.

However comments on what has come before. Use it to begin and end sentences, or put it inside a sentence to separate parts of the sentence. It always has punctuation before and after it.• Crude oil is not very useful.

However, its compounds have many uses. Or Its compounds (, however,) have many uses (,however.)

but, although, however

Use these

connectors to make

contrasts.

Although is followed by two contrasting ideas. The although-clause starts or finishes the sentence.

Although crude oil is not very useful, its compounds have many uses.The compounds of crude oil have many uses, although crude oil is not very useful.