English verb conjugation CAN CONCERTINA

Regular verb: concertina - concertinaed - concertinaed

Affirmation

Simple form

I can concertina
you can concertina
he can concertina
we can concertina
you can concertina
they can concertina

V-ing form

I can be concertinaing
you can be concertinaing
he can be concertinaing
we can be concertinaing
you can be concertinaing
they can be concertinaing

Perfect

I can have concertinaed
you can have concertinaed
he can have concertinaed
we can have concertinaed
you can have concertinaed
they can have concertinaed

V-ing perfect

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

Negation

Simple form

I cannot concertina
you cannot concertina
he cannot concertina
we cannot concertina
you cannot concertina
they cannot concertina

V-ing form

I cannot be concertinaing
you cannot be concertinaing
he cannot be concertinaing
we cannot be concertinaing
you cannot be concertinaing
they cannot be concertinaing

Perfect

I cannot have concertinaed
you cannot have concertinaed
he cannot have concertinaed
we cannot have concertinaed
you cannot have concertinaed
they cannot have concertinaed

V-ing perfect

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

Interrogative form

Simple form

can I concertina?
can you concertina?
can he concertina?
can we concertina?
can you concertina?
can they concertina?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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