Replace ます with ました to report a past event: 見ます becomes 見ました. The same ending works for different verb classes. Compare the examples, then use the table to build your own sentences.
The idea
Replace ます with ました to report a past event: 見ます becomes 見ました. The same ending works for different verb classes. For a negative past, add でした to ません: 食べません becomes 食べませんでした. A time word such as 昨日 helps place the event.
| Starting form | Form or example |
|---|---|
| 見ます | 見ました |
| 買います | 買いました |
| します | しました |
| 行きません | 行きませんでした |
Examples
- 昨日、友達と公園へ行きました。Yesterday I went to the park with a friend.
- 朝、パンを食べました。I ate bread this morning.
- 日曜日に家で映画を見ました。On Sunday I watched a film at home.
- 先週、新しい本を買いました。Last week I bought a new book.
- 昨日は電車に乗りませんでした。I did not take the train yesterday.
- 田中さんは日本語を勉強しました。Tanaka studied Japanese.
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Watch out
Do not use ました for every future event. The non-past ます can express a future action when the context or time word makes it clear.
Try it yourself
Write the polite past form. 「見ます」→ __
Show answer or example answer
見ました
見ました — Replace ます with ました to report a past event: 見ます becomes 見ました. The same ending works for different verb classes.
Write the polite past negative form. 「食べます」→ __
Show answer or example answer
食べませんでした
食べませんでした — For a negative past, add でした to ません: 食べません becomes 食べませんでした. A time word such as 昨日 helps place the event.
Choose the form that completes the sentence. 昨日、本を読み__。(ます/ました)
Show answer or example answer
ました
ました — Replace ます with ました to report a past event: 見ます becomes 見ました. The same ending works for different verb classes.
Practice round
Answer questions, then rebuild Japanese sentences where available. We keep your score.
Write the polite past form. 「見ます」→ __
Write the polite past negative form. 「食べます」→ __
Choose the form that completes the sentence. 昨日、本を読み__。(ます/ました)
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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Cover the examples. Make two new sentences using the pattern, then check them against the table.

