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2024年3月30日发(作者：)

Using Adverb Clauses with Time Expressions

Punctuation

When an adverb clause begins the sentence, use a comma to separate the two

clauses. Example: As soon as he arrives, we will have some lunch. When the adverb

clause finishes the sentence, there is no need for a comma. Example: He gave me a

call when he arrived in town.

Adverb Clauses with Time

When

• He was talking on the phone when I arrived.

• When she called, he had already eaten lunch.

• I washed the dishes when my daughter fell asleep.

• We'll go to lunch when you come to visit.

'When' means 'at that moment, at that time, etc.'. Notice the different tenses

used in relationship to the clause beginning with when. It is important to

remember that 'when' takes either the simple past OR the present - the dependent

clause changes tense in relation to the 'when' clause.

Before

• We will finish before he arrives.

• She (had) left before I telephoned.

'Before' means 'before that moment'. It is important to remember that 'before'

takes either the simple past OR the present.

After

• We will finish after he comes.

• She ate after I (had) left.

'After' means 'after that moment'. It is important to remember that 'after'

takes the present for future events and the past OR past perfect for past events.

While, as

• She began cooking while I was finishing my homework.

• As I was finishing my homework, she began cooking.

'While' and 'as' mean 'during that time'. 'While' and 'as' are both usually used

with the past continuous because the meaning of 'during that time' which

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