can't：[英][kɑ:nt][美][kænt]
这里can一般会用弱读式，元音发/ə/，而can’t元音发/æ/（或英式的/ɑː/）。
1、一般情况下，can't比can发音更重
2、can't后面的t省略，由n代替，读作cann
3、can.通常会有一定弱读，发出“肯”
not相关的否定缩写：
通常在原词后加n’t，若原词以n结尾，直接加’t。
1、系动词 + not：
isn’t = is notwasn’t = was not
aren’t = are notweren’t = were not
注意：am not一般不缩写。
2、助动词 + not：
don’t = do notdoesn’t = does not
didn’t = did nothaven’t = have not
hasn’t = has nothadn’t = had not
3、情态动词 + not：
can’t = can notcouldn’t = could not
won’t = will notwouldn’t = would not
shouldn’t = should not
例句：
1、Tom isn’t my brother. = Tom is not my brother.（汤姆不是我的弟弟。）
2、He didn’t come back. = He did not come back.（他没有回来。）
3、She can’t finish the work alone. = She can not finish the work alone. （她无法独自完成工作。）
人称代词+系动词的缩写
am缩写成’m，are缩写成’re，is缩写成’s。
I’m = I amhe’s = he isshe’s = she is
you’re = you arewe’re = we are
they’re = they arethere’re = there are
