-
不带
to
的动词不定式通常有下面十八种情况<
/p>
动词不定式通常带有符号
to
，叫做带
to
的动词不定式
(infinitive with
，动词不定式有时不带符号
to
，叫
做不带
to
的动词不定式
(infinitive
without
?
不带
to
的动词不定式通常有下面十八种情况
?
一、与助动词
do
连用构成谓语动词的否定、疑问和强调形式。
?<
/p>
(1)he
does not work in the
factory.
?
(2)Does she work
here
？
?
(3)I did not see
her yesterday.
?
(4)Did they take
you home?
?
(5)He does look
tired.
?
(6)They did come yesterday.
?
二、与情态动词连用构成复合谓语
?
(1)I can speak
English.
?
(2)May
I come in?
?
(3)Dare he swim across the river?
(4)We must work,and above all we must believe in
ourselves.
?
(5)Could you do something for
me?
(6)You shall go at once.
?
(7)He might be working in the
office now.
(8)I don't think you need have
come yesterday.
(9)They should
be here by now.
(10)If you will
go into the fields and turn over a few big
stones,you are sure to uncover a city of
ant
?
但与情态动词
< br>ought(to)
连用时通常带
to
< br>，和
used(to)
连用时必须带
to
?
三、在表示感觉的动词如
：
see,,watch,hear,listen
to,feel,notice,o
bserve,perceive(
觉察，看见
),behol
d
（书面用语
“
见到
< br>”
）等后用作宾语补足语的动
词不定。
< br>?
(1)I saw her cross the
street.
?
(2)He looked at the children walk up
the hill.
(3)I
watched the boy cross the
road.
?
(4)I heard her play the
piano.
?
(5)He listend to us
talk.
?
(6)I
felt the floor move.
?
(7)I didn’t
notice you enter.?
(8)He observed someone open the
door.
?
(9)I did not perceive anyone come
in.
?
(10)He beheld her go
out.
?
但除
notice,watch
不用被
动语态外，上述动词变成被动语态时，其后的动词不定式就不省
to
(1)She was seen
to cross street.
?
(2)She was heard
to play the piano.
?
四、使役动词
make,let,have,bid, lea
ve(=let)
后作宾语补足语的动词不定式不带
to
?
(1)You may take a horse to the
water,but you can't make him
drink.
?
(2)I'll let him do
it.
?
(3)Don't forget
to have them come.
?
(4)Bid him go
home.
?
(5)Leave him go.
?
动词
hav
e
通常不用于被动语态，
make
和<
/p>
bid
可用于被动语态，
let
偶尔也可用于被动态，用作主
语补足语的动词不定式通常带
to
，但在
make
和
let
后有时可以不带
to
(1)John was made
to wash the truck for a week as a
punishment.
?
(2)He was made(to)
laugh.
?
(3)The child was let(to) do
it.
?
五、
never
与
know
连用其后作宾
语补足语的动词不定式可省
to
，其时态多为完成时态。
(1)I
never knew him act without thinking.
(2)I've never known it snow in July
before.
(3)I had
never known her ask for pity
before.
?
有时
eve
r
与
known
连用也有上述用法。<
/p>
(1)Have you ever known me tell a
lie?
?
六、在
< br>find
后作宾语补定语的动词不定式有时可以省
to<
/p>
，但如动词为
be
，那么一般不省
to
，要省一起省
略
?
(1)We found the farm crops(to) do
well.
?
(2)I find the
Chinese people to be happy and
cheerful.
?
(3)I found this to be true in all the
cities.
(4)We found him
(to be) honest/dishonest.
七、在
cannot but,cannot help
but,can not choose but, had
better(best),would(had)
rather(sooner)…than…, would as
soon
…as…
后的动词不定一般不带
to
(1)When the country calls you for
help,you cannot but go.
?
(2)He can't help
but feel sorry for her.
?
(3)he cannot
choose but obey.
?
(4)I
had better leave now,or I'll be late.
(5)He had best buy it now while it is
still available.
?
(6)I would
rather go mountain
—
climbing
than just take a walk.
?
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