Question

but yet while however 区别

Answer 1

but,
however,
still,
yet,
nevertheless,
while,
whereas
这些连词或副词均含“但是，可是，然而，而”之意。
but〓口语常用词，语气较强，泛指与前述情况相反。
however〓表转折关系，语气稍弱于but，连接性也弱一些，因而常作插入语。
still〓语气强，多用于肯定句或疑问句。指尽管作出让步，采取措施或表示反对，但情况仍然如故，无所改变。
yet〓常用于否定句，语气比still稍强。指不管作出多大努力或让步，仍达不到预期的结果。
nevertheless〓指尽管作出完全让步，也不会发生任何影响。
while〓表对比，一般可与whereas换用，但程度弱一些。
whereas〓表对比，一般可与while互换。

Answer 2

but
而是；但是
Not one, but two!
不是一，而是二！
尽管…还是
tired but happy
尽管累却很快活
可是；然而
I was going to write, but I lost your address.
我本来要写信的，可是把你的地址弄丢了。

yet(用于疑问句和否定句)
还，尚，仍
He has not come yet.
他还没有来。
She is yet a child.
她还是个孩子。
He was poor, yet happy.
他很穷，可是很快乐。
The driver's not yet conscious after the accident.
驾驶员在出事后,还没有苏醒过来。
The doctors have not yet decided how the woman died.
医生们尚未确定这位妇女的死因。

whlie只能和延续性动词连用(常用于过去进行时)
n. 一会儿, 时间
conj. 当...的时候, 虽然
vt. 消磨
prep. <古><方>直到

however
然而,但是
adv. 无论如何, 可是, 仍然, 究竟
conj. 不管用何种方法, 然而, 可是

Answer 3

we
usually
use
'yet'
to
talk
about
present
perfect.
eg:Have
you
finished
it,yet?
we
use
'however,
but,
while'
as
a
conjunction.
eg:
I
want
to
buy
a
movie
ticket
,
However,
I
forget
my
wallet.
you
can
put
'however'
in
the
middle
of
the
sentence
or
at
the
end
of
sentence(they
both
have
same
meaning),
but
you
have
to
write
','
to
separate
2
sentences
if
you
put
it
in
the
middle(see
simple).
'while'
means
'
at
the
same
time',
if
something
happened
in
the
past,
we
`ll
only
use
'while+past
continue'.
eg
:
My
phone
rang
while
I
was
having
a
dinner.