Explanation
Describes the time when a certain action takes place; 'when', 'at the time'.
Formation
Verb-る + ときに
Detailed explanation
The ～るときに grammar point is used to indicate the time when a certain action or event happens. It can be translated as 'when' or 'at the time' in English. The formation involves attaching ときに to the verb in its dictionary (る) form.
Examples
映画を見るときに、ポップコーンを食べます。
Eiga wo miru toki ni, poppukoon wo tabemasu.
When I watch a movie, I eat popcorn.
寝るときに、部屋の電気を消します。
Neru toki ni, heya no denki wo keshimasu.
When I go to bed, I turn off the room lights.
運動するときに、水分補給が大切です。
Undou suru toki ni, suibun hokyuu ga taisetsu desu.
When exercising, it's important to stay hydrated.
旅行するときに、カメラを持っていくことが好きです。
Ryokou suru toki ni, kamera wo motteiku koto ga suki desu.
When I travel, I like to bring a camera.
Practice
Grammar content sourced from hanabira.org.