FluencyLab
GrammarHub
Choose during + noun for when something happened, for + period for duration, and while + clause for simultaneous actions.
Overview
Choose during + noun for when something happened, for + period for duration, and while + clause for simultaneous actions.
Form and rules
During is a preposition followed by a noun phrase: during the meeting.
For introduces a period of duration: for two hours, for a week.
While is a conjunction followed by a clause: while I was working.
Do not say during I was working; use while I was working.
During answers when within an event; for answers how long.
A closer look
Do not say during I was working; use while I was working.
During answers when within an event; for answers how long.
Examples
Nobody spoke during the presentation.
We waited for two hours.
I listened to music while I was cooking.
She fell asleep during the film.
He lived there for six months.
Common mistakes
During is followed by the noun phrase the lecture.
For introduces a duration.
Ready to practise?
The test combines multiple choice, gap completion, error correction, and sentence building so students have to recognise and produce the grammar, not simply reread the rule.