TIME LINKERS ( SIMPLE PAST / PAST CONTINUOUS / PAST PERFECT )
We can use while, as and when to show that two actions happen at the same time (= two simultaneous actions happening at the same time ).
He was reading a letter while / as / when she was watching TV.
While / As/ When she was watching TV, he was reading a letter.
We can use the moment, as soon as and when to show that one action happens immediately after another one.
The child fell asleep the moment / as soon as / when he climbed onto the sofa.
The moment / As soon as / When the child climbed onto the sofa, he fell asleep.
We can use by the time, before and after to show that one action has happened before another.
The party had finished by the time we arrived.
By the time we arrived, the party had finished.
Before he went to bed, he had answered the mail.
After he had answered the mail, he went to bed.
Gracias. Me aclaro la idea.
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