在宾语从句中，当主句的谓语动词为think,believe,expect,imagine,supp

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形式上否定主句的谓语，实际上是否定从句的谓语。
当动词think, believe, suppose, imagine, expect, feel的主语是第一人称、谓语动词为没有任何副词修饰的一般现在时，它们的否定式实际上是对宾语从句的否定。表示说话者提出一种委婉的看法或主张。如：
I think that he will help us —I don't think that he will help us 我认为它不会帮助我们。
I believe that he is right —I don't believe that he is right 我认为他不对。
I suppose that he likes it —I don't suppose that he likes it 我想他不喜欢它。
2 形式上否定谓语动词，实际上否定复合宾语。
当动词think, believe, suppose, imagine, expect, feel, find的主语是第一人称、谓语动词为没有任何副词修饰的一般现在时，它们前面的否定式实际上是对复合宾语的否定。表示说话者所提出的一种委婉的看法或主张。如：
I think math difficult — I don't think math difficult 我认为数学不难。
I find the story interesting — I don't find the story interesting 我认为这个故事没有趣。
I expect so —I don’t expect so 我认为不会。
A
ADJadjective，形容词
ADJ AFTER N用在名词后的形容词
ADJ CLASSIFclassify，分类的形容词
ADJ COLOURcolour，颜色的形容词
ADJ QUALITquality质量的形容词
ADVadverb副词
ADV AFTER VB用在动词后面的副词
ADV BRD NEG
ADV SEN
ADV WITH VB
ADV+ADJ/ADV
AGE
ATTRIB
AUX
BE
BROAD NEG
C
COMB
COMPAR
CONJ COORD
CONJ SUBORD
CONT
CONVENTION
DARE
DATE
DET
DETPOSS
DO
EXCLAM
HAVE
IMPER
INF
-ING
MEASUREMENT
MOD
MODAL
MONEY
N
N BEFORE N
N COUNT
N MASS
N PART
N PLURAL
N PROPER
N SING
N UNCOUNT
N UNCOUNT/COUNT
NAME
NEED
NEG
NG
NUM
NUMBER
O
ORDINAL
PASS
PAST PART
PHR
PHRASAL VB
POSS
PRED
PREDET
PREFIX
PREP
PRON
PRON INDEF
PRONPOSS
PRON REFL
PRON REL
QUANTIF
QUOTE
RECIP
REFL
REPORT-CL
S
SEMI MODAL
SUFFIX
SUPERL
SUPP
TIME
TITLE
to-INF
USED
USU
V
V-ERG
V+A
V+C
V+O
V+O+A
V+O+C
V+O+O
VB
VOC
WH
increase后面加to，意思是“增长到”，表达增加到一个程度。increase to，例句：Northerly winds will increase to force six by midday到中午时分北风会加强到6级。
increase后面加by，意思是“增长”，意思是在原来的基础上增长了一定量。increase by例句：Our turnover have be Increase by& 20000我们的交易额增加了2000镑。