English verb conjugation CAN EXIST

Regular verb: exist - existed - existed


Affirmation

Simple form

I can exist
you can exist
he can exist
we can exist
you can exist
they can exist

V-ing form

I can be existing
you can be existing
he can be existing
we can be existing
you can be existing
they can be existing

Perfect

I can have existed
you can have existed
he can have existed
we can have existed
you can have existed
they can have existed

V-ing perfect

I can have been existing
you can have been existing
he can have been existing
we can have been existing
you can have been existing
they can have been existing

Negation

Simple form

I cannot exist
you cannot exist
he cannot exist
we cannot exist
you cannot exist
they cannot exist

V-ing form

I cannot be existing
you cannot be existing
he cannot be existing
we cannot be existing
you cannot be existing
they cannot be existing

Perfect

I cannot have existed
you cannot have existed
he cannot have existed
we cannot have existed
you cannot have existed
they cannot have existed

V-ing perfect

I cannot have been existing
you cannot have been existing
he cannot have been existing
we cannot have been existing
you cannot have been existing
they cannot have been existing

Interrogative form

Simple form

can I exist?
can you exist?
can he exist?
can we exist?
can you exist?
can they exist?

V-ing form

can I be existing?
can you be existing?
can he be existing?
can we be existing?
can you be existing?
can they be existing?

Perfect

can I have existed?
can you have existed?
can he have existed?
can we have existed?
can you have existed?
can they have existed?

V-ing perfect

can I have been existing?
can you have been existing?
can he have been existing?
can we have been existing?
can you have been existing?
can they have been existing?

Interro-negative form

Simple form

can I not exist?
can you not exist?
can he not exist?
can we not exist?
can you not exist?
can they not exist?

V-ing form

can I not be existing?
can you not be existing?
can he not be existing?
can we not be existing?
can you not be existing?
can they not be existing?

Perfect

can I not have existed?
can you not have existed?
can he not have existed?
can we not have existed?
can you not have existed?
can they not have existed?

V-ing perfect

can I not have been existing?
can you not have been existing?
can he not have been existing?
can we not have been existing?
can you not have been existing?
can they not have been existing?