Free Forever
Access all grammar guides, quizzes, and flashcards without paying a cent. Quality education should be accessible to everyone.
| Form | Affirmative | Negative |
|---|---|---|
| Present | 時間が経つ | 時間が経たない |
| Polite | 時間が経ちます | 時間が経ちません |
| Past | 時間が経った | 時間が経たなかった |
| Polite + Past | 時間が経ちました | 時間が経ちませんでした |
| Te-form | 時間が経って | 時間が経たなくて |
| Potential | 時間が経てる | 時間が経てない |
| Passive | 時間が経たれる | 時間が経たれない |
| Causative | 時間が経たせる | 時間が経たせない |
| Causative + Passive | 時間が経たされる | 時間が経たされない |
| Imperative | 時間が経て | 時間が経つな |
Sottaku
Sottaku is an app for learning a growing range of Asian and European languages with a strong focus on SRS. It includes automatic flashcard creation for hundreds of thousands of words, grammar breakdowns in example sentences, language-specific study packs where available, adaptive quizzes, mobile apps, a browser extension, and community features. Give it a try now! All learning content is free with no limits on flashcards or study time.
Sottaku is built to match the habits of successful learners. By using Sottaku, you will naturally learn in the most efficient way possible, as proven by countless success stories in the language learning community.
Free Forever
Access all grammar guides, quizzes, and flashcards without paying a cent. Quality education should be accessible to everyone.
Smart SRS System
Our flashcard system uses the FSRS algorithm (also used in Anki) to optimize your review schedule and maximize retention.
Comprehensive Content
From hanzi, kana, hangul, and European vocabulary basics to grammar and reading practice where available, we have lessons for every level. Practice with quizzes tailored to your skill.
Community Chat
Ask level-appropriate questions and get help from the community. Learn together with fellow learners across every supported language.