English verb conjugation CAN THUMBTACK

Regular verb: thumbtack - thumbtacked - thumbtacked

Affirmation

Simple form

I can thumbtack
you can thumbtack
he can thumbtack
we can thumbtack
you can thumbtack
they can thumbtack

V-ing form

I can be thumbtacking
you can be thumbtacking
he can be thumbtacking
we can be thumbtacking
you can be thumbtacking
they can be thumbtacking

Perfect

I can have thumbtacked
you can have thumbtacked
he can have thumbtacked
we can have thumbtacked
you can have thumbtacked
they can have thumbtacked

V-ing perfect

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

Negation

Simple form

I cannot thumbtack
you cannot thumbtack
he cannot thumbtack
we cannot thumbtack
you cannot thumbtack
they cannot thumbtack

V-ing form

I cannot be thumbtacking
you cannot be thumbtacking
he cannot be thumbtacking
we cannot be thumbtacking
you cannot be thumbtacking
they cannot be thumbtacking

Perfect

I cannot have thumbtacked
you cannot have thumbtacked
he cannot have thumbtacked
we cannot have thumbtacked
you cannot have thumbtacked
they cannot have thumbtacked

V-ing perfect

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

Interrogative form

Simple form

can I thumbtack?
can you thumbtack?
can he thumbtack?
can we thumbtack?
can you thumbtack?
can they thumbtack?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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