English verb conjugation COULD HELICOPTER

Regular verb: helicopter - helicoptered - helicoptered

Affirmation

Simple form

I could helicopter
you could helicopter
he could helicopter
we could helicopter
you could helicopter
they could helicopter

V-ing form

I could be helicoptering
you could be helicoptering
he could be helicoptering
we could be helicoptering
you could be helicoptering
they could be helicoptering

Perfect

I could have helicoptered
you could have helicoptered
he could have helicoptered
we could have helicoptered
you could have helicoptered
they could have helicoptered

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I helicopter?
could you helicopter?
could he helicopter?
could we helicopter?
could you helicopter?
could they helicopter?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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