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Unit 4
have to ~
/ must
I have
to
take
a
tast in mathema
ematics
tomorrow.
have to ~
「しなければならな
過去形は
had to
~
I had
to
ga
to Tokyo
~しなければならなかった」。
alone.
(私は1人で東京に行かなければならなかった。)
We must
go.→ 主観的判断
mustには過去形が
ないので過去の義務には、
had
to
~
を使う。
3
We have to go.→ 客観的状況
8 have to ~の疑問文・否定文
疑問文→ Do(Does, Did〕+主語+ have to ~?
否定文の
主語+ dont (doesn't, didn't〕+hare to ~
(~する必要はない、
~するにはおよばない。)
Did
You have to go to Yokohama last Saturday?
(先週の土曜日、横浜に行かなくてはなりませんでしたか。)
- No, I didn't. I didn't have to go there.
go
しいいえ。
そこに行く必要はありませんでした。)
Must Ido
hame work
my
now
?
Yes, you
(must)
Did he hare to write a lot of letters ?
Yes. He
(had) (to)
write ten letters.
O. I have to
No,
take off
my
shoes in the school?
don't (have) (to)
you