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Grammar · Question words

いつ, when

The pattern

itsu [verb]

いつ asks when, and takes no particle after it.

The mistake to avoid

Never いつに. The word already carries the meaning of 'at what time'.

Examples

Rōmaji help
itsu nihon ni ikimasu ka.
When are you going to Japan?
tanjōbi wa itsu desu ka.
When is your birthday?
itsu kimasu ka.
When are you coming?
tesuto wa itsu desu ka.
When is the test?