English verb conjugation
CAN UNTANGLE

Regular verb: untangle - untangled - untangled

Affirmation

Simple form	V-ing form
I can untangle you can untangle he can untangle we can untangle you can untangle they can untangle	I can be untangling you can be untangling he can be untangling we can be untangling you can be untangling they can be untangling
Perfect	V-ing perfect
I can have untangled you can have untangled he can have untangled we can have untangled you can have untangled they can have untangled	I can have been untangling you can have been untangling he can have been untangling we can have been untangling you can have been untangling they can have been untangling

Negation

Simple form	V-ing form
I can't untangle you can't untangle he can't untangle we can't untangle you can't untangle they can't untangle	I can't be untangling you can't be untangling he can't be untangling we can't be untangling you can't be untangling they can't be untangling
Perfect	V-ing perfect
I can't have untangled you can't have untangled he can't have untangled we can't have untangled you can't have untangled they can't have untangled	I can't have been untangling you can't have been untangling he can't have been untangling we can't have been untangling you can't have been untangling they can't have been untangling

Interrogative form

Simple form	V-ing form
can I untangle? can you untangle? can he untangle? can we untangle? can you untangle? can they untangle?	can I be untangling? can you be untangling? can he be untangling? can we be untangling? can you be untangling? can they be untangling?
Perfect	V-ing perfect
can I have untangled? can you have untangled? can he have untangled? can we have untangled? can you have untangled? can they have untangled?	can I have been untangling? can you have been untangling? can he have been untangling? can we have been untangling? can you have been untangling? can they have been untangling?

Interro-negative form

Simple form	V-ing form
can't I untangle? can't you untangle? can't he untangle? can't we untangle? can't you untangle? can't they untangle?	can't I be untangling? can't you be untangling? can't he be untangling? can't we be untangling? can't you be untangling? can't they be untangling?
Perfect	V-ing perfect
can't I have untangled? can't you have untangled? can't he have untangled? can't we have untangled? can't you have untangled? can't they have untangled?	can't I have been untangling? can't you have been untangling? can't he have been untangling? can't we have been untangling? can't you have been untangling? can't they have been untangling?