English verb conjugation CAN GRUB

Regular verb: grub - grubbed - grubbed

Affirmation

Simple form

I can grub
you can grub
he can grub
we can grub
you can grub
they can grub

V-ing form

I can be grubbing
you can be grubbing
he can be grubbing
we can be grubbing
you can be grubbing
they can be grubbing

Perfect

I can have grubbed
you can have grubbed
he can have grubbed
we can have grubbed
you can have grubbed
they can have grubbed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

can I grub?
can you grub?
can he grub?
can we grub?
can you grub?
can they grub?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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