N／な-adj + だと思います (N / na-adj + da to omoimasu) — I think it is ~
The role of だ with nouns and na-adjectives.
Formula (सूत्र ढाँचा)
Grammar rule (व्याकरण नियम र परिभाषा)
When a noun or na-adjective comes before 「と思います」, you must insert 「だ」between them. Verbs and i-adjectives take no だ, but nouns and na-adjectives require it. For example: 学生 → 学生だと思います, げんき → げんきだと思います. Forgetting this small だ is a very common mistake.
Examples (उदाहरणहरू)
あの人は日本人だと思います。
ano hito wa nihonjin da to omoimasu.
I think that person is Japanese.
これはおちゃだと思います。
kore wa ocha da to omoimasu.
I think this is tea.
田中さんはげんきだと思います。
Tanaka-san wa genki da to omoimasu.
I think Tanaka is well.
Knowledge check (मिनी ज्ञान जाँच)
Question: 1/3"I think this is tea" — which is correct?
💡 Hint: A noun requires だ.
おちゃ (noun) + だ + と思います.
"I think Tanaka is well" — with na-adj げんき, which one?
💡 Hint: A na-adjective also needs だ.
げんき (na-adj) + だ + と思います.
Which word needs だ before と思います?
💡 Hint: Only a noun needs だ.
学生 is a noun → 学生だと思います; the rest are i-adjectives/verbs and take no だ.
Your score: /3