美国当代英语语料库（COCA）标签总汇-4

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VD0  do, base form (finite)

VDD  did

VDG  doing

VDI  do, infinitive (I may do... To do...)

VDN  done

VDZ  does

VH0  have, base form (finite)

VHD  had (past tense)

VHG  having

VHI  have, infinitive

VHN  had (past participle)

VHZ  has

VM  modal auxiliary (can, will, would, etc.)

VMK  modal catenative (ought, used)

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