English verb conjugation CAN SIRE

Regular verb: sire - sired - sired

Affirmation

Simple form

I can sire
you can sire
she can sire
we can sire
you can sire
they can sire

V-ing form

I can be siring
you can be siring
she can be siring
we can be siring
you can be siring
they can be siring

Perfect

I can have sired
you can have sired
she 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
she 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
she 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
she 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
she 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
she 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 she sire?
can we sire?
can you sire?
can they sire?

V-ing form

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

Perfect

can I have sired?
can you have sired?
can she 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 she 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 she 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 she 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 she 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 she 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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