English verb conjugation COULD UNTANGLE

Regular verb: untangle - untangled - untangled

Affirmation

Simple form

I could untangle
you could untangle
he could untangle
we could untangle
you could untangle
they could untangle

V-ing form

I could be untangling
you could be untangling
he could be untangling
we could be untangling
you could be untangling
they could be untangling

Perfect

I could have untangled
you could have untangled
he could have untangled
we could have untangled
you could have untangled
they could have untangled

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I untangle?
could you untangle?
could he untangle?
could we untangle?
could you untangle?
could they untangle?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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