English verb conjugation COULD OVERDO

Irregular verb: overdo - overdid - overdone

Affirmation

Simple form

I could overdo
you could overdo
she could overdo
we could overdo
you could overdo
they could overdo

V-ing form

I could be overdoing
you could be overdoing
she could be overdoing
we could be overdoing
you could be overdoing
they could be overdoing

Perfect

I could have overdone
you could have overdone
she could have overdone
we could have overdone
you could have overdone
they could have overdone

V-ing perfect

I could have been overdoing
you could have been overdoing
she could have been overdoing
we could have been overdoing
you could have been overdoing
they could have been overdoing

Negation

Simple form

I couldn't overdo
you couldn't overdo
she couldn't overdo
we couldn't overdo
you couldn't overdo
they couldn't overdo

V-ing form

I couldn't be overdoing
you couldn't be overdoing
she couldn't be overdoing
we couldn't be overdoing
you couldn't be overdoing
they couldn't be overdoing

Perfect

I couldn't have overdone
you couldn't have overdone
she couldn't have overdone
we couldn't have overdone
you couldn't have overdone
they couldn't have overdone

V-ing perfect

I couldn't have been overdoing
you couldn't have been overdoing
she couldn't have been overdoing
we couldn't have been overdoing
you couldn't have been overdoing
they couldn't have been overdoing

Interrogative form

Simple form

could I overdo?
could you overdo?
could she overdo?
could we overdo?
could you overdo?
could they overdo?

V-ing form

could I be overdoing?
could you be overdoing?
could she be overdoing?
could we be overdoing?
could you be overdoing?
could they be overdoing?

Perfect

could I have overdone?
could you have overdone?
could she have overdone?
could we have overdone?
could you have overdone?
could they have overdone?

V-ing perfect

could I have been overdoing?
could you have been overdoing?
could she have been overdoing?
could we have been overdoing?
could you have been overdoing?
could they have been overdoing?

Interro-negative form

Simple form

couldn't I overdo?
couldn't you overdo?
couldn't she overdo?
couldn't we overdo?
couldn't you overdo?
couldn't they overdo?

V-ing form

couldn't I be overdoing?
couldn't you be overdoing?
couldn't she be overdoing?
couldn't we be overdoing?
couldn't you be overdoing?
couldn't they be overdoing?

Perfect

couldn't I have overdone?
couldn't you have overdone?
couldn't she have overdone?
couldn't we have overdone?
couldn't you have overdone?
couldn't they have overdone?

V-ing perfect

couldn't I have been overdoing?
couldn't you have been overdoing?
couldn't she have been overdoing?
couldn't we have been overdoing?
couldn't you have been overdoing?
couldn't they have been overdoing?

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