English verb conjugation CAN LETTER

Regular verb: letter - lettered - lettered

Affirmation

Simple form

I can letter
you can letter
he can letter
we can letter
you can letter
they can letter

V-ing form

I can be lettering
you can be lettering
he can be lettering
we can be lettering
you can be lettering
they can be lettering

Perfect

I can have lettered
you can have lettered
he can have lettered
we can have lettered
you can have lettered
they can have lettered

V-ing perfect

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

Negation

Simple form

I cannot letter
you cannot letter
he cannot letter
we cannot letter
you cannot letter
they cannot letter

V-ing form

I cannot be lettering
you cannot be lettering
he cannot be lettering
we cannot be lettering
you cannot be lettering
they cannot be lettering

Perfect

I cannot have lettered
you cannot have lettered
he cannot have lettered
we cannot have lettered
you cannot have lettered
they cannot have lettered

V-ing perfect

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

Interrogative form

Simple form

can I letter?
can you letter?
can he letter?
can we letter?
can you letter?
can they letter?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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