Name activities such as study, sport and chores. The examples use polite speech in everyday situations.
The idea
This verb is irregular: する becomes します, しません, しました and して. Use を with a sport or an activity noun; with study, both べんきょうをします and べんきょうします are possible. Here ています describes an action in progress, while ませんか makes a polite invitation.
| Dictionary form | Polite non-past | Polite negative | Polite past | て form |
|---|---|---|---|---|
| する | します | しません | しました | して |
Examples
- 毎晩、日本語を勉強します。I study Japanese every evening.
- 今日は運動をしません。I am not exercising today.
- 昨日、友達とテニスをしました。Yesterday I played tennis with a friend.
- 朝、部屋を掃除します。I clean the room in the morning.
- 今、子どもが宿題をしています。A child is doing homework now.
- 日曜日にいっしょに料理をしませんか。Would you like to cook together on Sunday?
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Watch out
Do not attach ます directly to する: use します. Activity nouns can combine directly with する, while a marked object takes を.
Try it yourself
勉強を＿。（する→ます）
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します
します is the polite non-past of する; context tells whether it refers to a habit or the future.
宿題を＿ください。（する→て）
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して
して is the て form of する. Before ください it forms a polite request.
テニス＿します。（を／に）
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を
を marks the direct object: the thing affected by or involved in the action.
Practice round
Answer questions, then rebuild Japanese sentences where available. We keep your score.
勉強を＿。（する→ます）
宿題を＿ください。（する→て）
テニス＿します。（を／に）
Tap the words in the right order.
Tap the words in the right order.
Tap the words in the right order.
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Describe one activity you do regularly, one you did yesterday, and invite someone to do another. Check the particles and verb forms against the examples.