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 cannot thumb
you cannot thumb
he cannot thumb
we cannot thumb
you cannot thumb
they cannot thumb

V-ing form

I cannot be thumbing
you cannot be thumbing
he cannot be thumbing
we cannot be thumbing
you cannot be thumbing
they cannot be thumbing

Perfect

I cannot have thumbed
you cannot have thumbed
he cannot have thumbed
we cannot have thumbed
you cannot have thumbed
they cannot have thumbed

V-ing perfect

I cannot have been thumbing
you cannot have been thumbing
he cannot have been thumbing
we cannot have been thumbing
you cannot have been thumbing
they cannot 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 I not thumb?
can you not thumb?
can he not thumb?
can we not thumb?
can you not thumb?
can they not thumb?

V-ing form

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

Perfect

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

V-ing perfect

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

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