English verb conjugation CAN SIRE

Regular verb: sire - sired - sired

Affirmation

Simple form

I can sire
you can sire
he can sire
we can sire
you can sire
they can sire

V-ing form

I can be siring
you can be siring
he can be siring
we can be siring
you can be siring
they can be siring

Perfect

I can have sired
you can have sired
he can have sired
we can have sired
you can have sired
they can have sired

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

can I sire?
can you sire?
can he sire?
can we sire?
can you sire?
can they sire?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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