English verb conjugation
CAN TAXI

Regular verb: taxi - taxied - taxied

Affirmation

Simple form	V-ing form
I can taxi you can taxi she can taxi we can taxi you can taxi they can taxi	I can be taxiing you can be taxiing she can be taxiing we can be taxiing you can be taxiing they can be taxiing
Perfect	V-ing perfect
I can have taxied you can have taxied she can have taxied we can have taxied you can have taxied they can have taxied	I can have been taxiing you can have been taxiing she can have been taxiing we can have been taxiing you can have been taxiing they can have been taxiing

Negation

Simple form	V-ing form
I cannot taxi you cannot taxi she cannot taxi we cannot taxi you cannot taxi they cannot taxi	I cannot be taxiing you cannot be taxiing she cannot be taxiing we cannot be taxiing you cannot be taxiing they cannot be taxiing
Perfect	V-ing perfect
I cannot have taxied you cannot have taxied she cannot have taxied we cannot have taxied you cannot have taxied they cannot have taxied	I cannot have been taxiing you cannot have been taxiing she cannot have been taxiing we cannot have been taxiing you cannot have been taxiing they cannot have been taxiing

Interrogative form

Simple form	V-ing form
can I taxi? can you taxi? can she taxi? can we taxi? can you taxi? can they taxi?	can I be taxiing? can you be taxiing? can she be taxiing? can we be taxiing? can you be taxiing? can they be taxiing?
Perfect	V-ing perfect
can I have taxied? can you have taxied? can she have taxied? can we have taxied? can you have taxied? can they have taxied?	can I have been taxiing? can you have been taxiing? can she have been taxiing? can we have been taxiing? can you have been taxiing? can they have been taxiing?

Interro-negative form

Simple form	V-ing form
can I not taxi? can you not taxi? can she not taxi? can we not taxi? can you not taxi? can they not taxi?	can I not be taxiing? can you not be taxiing? can she not be taxiing? can we not be taxiing? can you not be taxiing? can they not be taxiing?
Perfect	V-ing perfect
can I not have taxied? can you not have taxied? can she not have taxied? can we not have taxied? can you not have taxied? can they not have taxied?	can I not have been taxiing? can you not have been taxiing? can she not have been taxiing? can we not have been taxiing? can you not have been taxiing? can they not have been taxiing?