Using through

Through can be used as a preposition or an adverb. When through is used as a preposition, it is followed by a noun. When it is used as an adverb, it is not followed by a noun.

Through means from end to end or side to side of.

  • The River Thames goes through London.
  • We drove through the desert.

Through can also be used to talk about entering at one side and coming out at the other.

  • The road goes through the forest.
  • The train went through the tunnel.
  • She wouldn’t let me through.

To go through something is to examine it.

  • We must go through the accounts. (= We must examine the accounts.)

Through can also be used to talk about time. It means from beginning to end of.

  • He will not live through the night. (= He will die before morning.)

Through as an adverb

As an adverb through means from end to end, side to side or beginning to end.

  • I have read the letter through twice and cannot understand it.

Through can mean ‘all the way’.

  • Does this train go through to Bangkok? (= Does this train go all the way to Bangkok?)

All through

  • I was awake all through the night.

Through can also indicate the cause, etc.

  • The accident happened through no fault of yours.