de ha nai

Usages of de ha nai

天気てんき が わるい とき、 わたし は 自転車じてんしゃ で は なく 地下鉄ちかてつ に ります。tenki ga warui toki, watasi ha zitensya de ha naku tikatetu ni norimasu.
When the weather is bad, I take the subway instead of a bicycle.
ねこ は いぬ で は ない。neko ha inu de ha nai.
A cat is not a dog.
ちち は よる に くるま を 運転うんてんするの が き で は ありません。titi ha yoru ni kuruma wo untensuruno ga suki de ha arimasen.
My father doesn’t like driving a car at night.
いつも は あさ の 電車でんしゃ は 満員まにん だ と かれ は う けど、 今日きょう は 満員まにん で は ない みたい。itumo ha asa no densya ha manin da to kare ha iu kedo, kyou ha manin de ha nai mitai.
He says the morning trains are usually packed, but today they don’t seem full.
わたし は 英語えいご が 苦手にがて だ が、 日本語にほんご は 苦手にがて で は ない。watasi ha eigo ga nigate da ga, nihongo ha nigate de ha nai.
I’m not good at English, but I’m not bad at Japanese.

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How do verb conjugations work in Japanese?
Japanese verbs conjugate based on tense, politeness, and mood. For example, the polite present form adds ‑ます to the verb stem, while the past tense uses ‑ました. Unlike English, Japanese verbs don't change based on the subject — the same form works for "I", "you", and "they".

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