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1. have to / has to / had to + 原形動詞 主詞

+ have to

+ 原形動詞 … give her a phone call.

我得打個電話給她。

think it over.

你得考慮一下。

We

take plan B.

我們得採取備用計畫。

He

take medicine every day.

他需要每天服藥。

make an excuse.

她得編個藉口。

lie in bed.

她得臥床休養。

give up the plan.

我只好放棄那計畫。

leave his hometown.

他必須離開家鄉。

accept our offer.

他們不得不接受我們的條件。

I You

She

have to

has to

She I He

had to

They

★ have to + 原形動詞 表示「必須;得;不得不」 ★ 過去時態任何人稱的主詞 + had to + 原形動詞

2. do / does / did + not + have to + 原形動詞 主詞

+助動詞 not

have to

+ 原形動詞 … give her a phone call.

我不必打電話給她。

think it over.

你不必考慮了。

We

take plan B.

我們不必採取備用計畫。

He

take medicine every day.

他不必每天服藥。

make an excuse.

她不必編藉口。

lie in bed.

她不必臥床休養。

give up the plan then.

我不必放棄那計畫。

leave his hometown.

他不必離開家鄉。

accept our offer.

他們不必接受我們的條 件。

I You

She

don't

doesn't

have to

have to

She I He They

didn't

have to

★ "have to + 原形動詞"改為否定→do not + have to+ 原形動詞 ★ "第三人稱單數主詞 + has to + 原形動詞" 改為否定→does not + have to+ 原形動詞 ★ "過去時態任何人稱的主詞 + had to+ 原形動詞" 改為否定→did not + have to+ 原形動詞


Have has to 的用法(1)