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现在完成进行时 frostbite






现在完成进行时

I have been frostbitting



现在完成进行时 (Present perfect continuous)

I
have been frostbitting 
you
have been frostbitting 
he/she/it
has been frostbitting 
we
have been frostbitting 
you
have been frostbitting 
they
has been frostbitting 


不定式

frostbite









不规则动词