English verb conjugation CAN FROWN

Regular verb: frown - frowned - frowned

Affirmation

Simple form

I can frown
you can frown
he can frown
we can frown
you can frown
they can frown

V-ing form

I can be frowning
you can be frowning
he can be frowning
we can be frowning
you can be frowning
they can be frowning

Perfect

I can have frowned
you can have frowned
he can have frowned
we can have frowned
you can have frowned
they can have frowned

V-ing perfect

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

Negation

Simple form

I cannot frown
you cannot frown
he cannot frown
we cannot frown
you cannot frown
they cannot frown

V-ing form

I cannot be frowning
you cannot be frowning
he cannot be frowning
we cannot be frowning
you cannot be frowning
they cannot be frowning

Perfect

I cannot have frowned
you cannot have frowned
he cannot have frowned
we cannot have frowned
you cannot have frowned
they cannot have frowned

V-ing perfect

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

Interrogative form

Simple form

can I frown?
can you frown?
can he frown?
can we frown?
can you frown?
can they frown?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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