新概念二册语法精粹英语动词时态
英语时态是英语语法中的第一道难关，攻下此难关是作文、阅读、口语之关键。汉语用不同词表达相应时态，而英语用同一词的不同变化形式表达时态。英语各种时态构成表：以play为例：
一般时态
进行时态
完成时态
完成进行时态
现在
play
llays
is
am playing
are
has
have played
has
have been playing
过去
playe
was
were playing
had played
had been playing
将来
shall
will play
shall
will be playing
shall
will have played
shall
will have been playing
过去
将来
should
would play
should
would be playing
should
would have played
should
would have been playing
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