English verb conjugation CAN HOWL

Regular verb: howl - howled - howled

Affirmation

Simple form

I can howl
you can howl
he can howl
we can howl
you can howl
they can howl

V-ing form

I can be howling
you can be howling
he can be howling
we can be howling
you can be howling
they can be howling

Perfect

I can have howled
you can have howled
he can have howled
we can have howled
you can have howled
they can have howled

V-ing perfect

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

Negation

Simple form

I can't howl
you can't howl
he can't howl
we can't howl
you can't howl
they can't howl

V-ing form

I can't be howling
you can't be howling
he can't be howling
we can't be howling
you can't be howling
they can't be howling

Perfect

I can't have howled
you can't have howled
he can't have howled
we can't have howled
you can't have howled
they can't have howled

V-ing perfect

I can't have been howling
you can't have been howling
he can't have been howling
we can't have been howling
you can't have been howling
they can't have been howling

Interrogative form

Simple form

can I howl?
can you howl?
can he howl?
can we howl?
can you howl?
can they howl?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

can't I howl?
can't you howl?
can't he howl?
can't we howl?
can't you howl?
can't they howl?

V-ing form

can't I be howling?
can't you be howling?
can't he be howling?
can't we be howling?
can't you be howling?
can't they be howling?

Perfect

can't I have howled?
can't you have howled?
can't he have howled?
can't we have howled?
can't you have howled?
can't they have howled?

V-ing perfect

can't I have been howling?
can't you have been howling?
can't he have been howling?
can't we have been howling?
can't you have been howling?
can't they have been howling?

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