English verb conjugation COULD CORRUGATE

Regular verb: corrugate - corrugated - corrugated

Affirmation

Simple form

I could corrugate
you could corrugate
he could corrugate
we could corrugate
you could corrugate
they could corrugate

V-ing form

I could be corrugating
you could be corrugating
he could be corrugating
we could be corrugating
you could be corrugating
they could be corrugating

Perfect

I could have corrugated
you could have corrugated
he could have corrugated
we could have corrugated
you could have corrugated
they could have corrugated

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I corrugate?
could you corrugate?
could he corrugate?
could we corrugate?
could you corrugate?
could they corrugate?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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