English verb conjugation CAN THUMB

Regular verb: thumb - thumbed - thumbed

Affirmation

Simple form

I can thumb
you can thumb
he can thumb
we can thumb
you can thumb
they can thumb

V-ing form

I can be thumbing
you can be thumbing
he can be thumbing
we can be thumbing
you can be thumbing
they can be thumbing

Perfect

I can have thumbed
you can have thumbed
he can have thumbed
we can have thumbed
you can have thumbed
they can have thumbed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

can I thumb?
can you thumb?
can he thumb?
can we thumb?
can you thumb?
can they thumb?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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