English verb conjugation COULD OUTDO

Irregular verb: outdo - outdid - outdone

Affirmation

Simple form

I could outdo
you could outdo
he could outdo
we could outdo
you could outdo
they could outdo

V-ing form

I could be outdoing
you could be outdoing
he could be outdoing
we could be outdoing
you could be outdoing
they could be outdoing

Perfect

I could have outdone
you could have outdone
he could have outdone
we could have outdone
you could have outdone
they could have outdone

V-ing perfect

I could have been outdoing
you could have been outdoing
he could have been outdoing
we could have been outdoing
you could have been outdoing
they could have been outdoing

Negation

Simple form

I couldn't outdo
you couldn't outdo
he couldn't outdo
we couldn't outdo
you couldn't outdo
they couldn't outdo

V-ing form

I couldn't be outdoing
you couldn't be outdoing
he couldn't be outdoing
we couldn't be outdoing
you couldn't be outdoing
they couldn't be outdoing

Perfect

I couldn't have outdone
you couldn't have outdone
he couldn't have outdone
we couldn't have outdone
you couldn't have outdone
they couldn't have outdone

V-ing perfect

I couldn't have been outdoing
you couldn't have been outdoing
he couldn't have been outdoing
we couldn't have been outdoing
you couldn't have been outdoing
they couldn't have been outdoing

Interrogative form

Simple form

could I outdo?
could you outdo?
could he outdo?
could we outdo?
could you outdo?
could they outdo?

V-ing form

could I be outdoing?
could you be outdoing?
could he be outdoing?
could we be outdoing?
could you be outdoing?
could they be outdoing?

Perfect

could I have outdone?
could you have outdone?
could he have outdone?
could we have outdone?
could you have outdone?
could they have outdone?

V-ing perfect

could I have been outdoing?
could you have been outdoing?
could he have been outdoing?
could we have been outdoing?
could you have been outdoing?
could they have been outdoing?

Interro-negative form

Simple form

couldn't I outdo?
couldn't you outdo?
couldn't he outdo?
couldn't we outdo?
couldn't you outdo?
couldn't they outdo?

V-ing form

couldn't I be outdoing?
couldn't you be outdoing?
couldn't he be outdoing?
couldn't we be outdoing?
couldn't you be outdoing?
couldn't they be outdoing?

Perfect

couldn't I have outdone?
couldn't you have outdone?
couldn't he have outdone?
couldn't we have outdone?
couldn't you have outdone?
couldn't they have outdone?

V-ing perfect

couldn't I have been outdoing?
couldn't you have been outdoing?
couldn't he have been outdoing?
couldn't we have been outdoing?
couldn't you have been outdoing?
couldn't they have been outdoing?

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