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类别全部 - negative - verb - progressive - positive

作者：sewar tibi 7 年以前

1088

present progressive

present progressive

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present progressive

yes\no

Are+s+verbing?

Is+s+verbing?

Am+s+verbing?

negative

arent+verbing

isnt+verbing

am+not+verbing

positive

are+verbing

is+verbing

am+verbing