English verb conjugation COULD SPOIL

Irregular verb: spoil - spoiled, spoilt - spoiled, spoilt

Affirmation

Simple form

I could spoil
you could spoil
he could spoil
we could spoil
you could spoil
they could spoil

V-ing form

I could be spoiling
you could be spoiling
he could be spoiling
we could be spoiling
you could be spoiling
they could be spoiling

Perfect

I could have spoiled, spoilt
you could have spoiled, spoilt
he could have spoiled, spoilt
we could have spoiled, spoilt
you could have spoiled, spoilt
they could have spoiled, spoilt

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

I couldn't have spoiled, spoilt
you couldn't have spoiled, spoilt
he couldn't have spoiled, spoilt
we couldn't have spoiled, spoilt
you couldn't have spoiled, spoilt
they couldn't have spoiled, spoilt

V-ing perfect

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

Interrogative form

Simple form

could I spoil?
could you spoil?
could he spoil?
could we spoil?
could you spoil?
could they spoil?

V-ing form

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

Perfect

could I have spoiled, spoilt?
could you have spoiled, spoilt?
could he have spoiled, spoilt?
could we have spoiled, spoilt?
could you have spoiled, spoilt?
could they have spoiled, spoilt?

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

couldn't I have spoiled, spoilt?
couldn't you have spoiled, spoilt?
couldn't he have spoiled, spoilt?
couldn't we have spoiled, spoilt?
couldn't you have spoiled, spoilt?
couldn't they have spoiled, spoilt?

V-ing perfect

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

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