English verb conjugation COULD MASS

Regular verb: mass - massed - massed

Affirmation

Simple form

I could mass
you could mass
he could mass
we could mass
you could mass
they could mass

V-ing form

I could be massing
you could be massing
he could be massing
we could be massing
you could be massing
they could be massing

Perfect

I could have massed
you could have massed
he could have massed
we could have massed
you could have massed
they could have massed

V-ing perfect

I could have been massing
you could have been massing
he could have been massing
we could have been massing
you could have been massing
they could have been massing

Negation

Simple form

I couldn't mass
you couldn't mass
he couldn't mass
we couldn't mass
you couldn't mass
they couldn't mass

V-ing form

I couldn't be massing
you couldn't be massing
he couldn't be massing
we couldn't be massing
you couldn't be massing
they couldn't be massing

Perfect

I couldn't have massed
you couldn't have massed
he couldn't have massed
we couldn't have massed
you couldn't have massed
they couldn't have massed

V-ing perfect

I couldn't have been massing
you couldn't have been massing
he couldn't have been massing
we couldn't have been massing
you couldn't have been massing
they couldn't have been massing

Interrogative form

Simple form

could I mass?
could you mass?
could he mass?
could we mass?
could you mass?
could they mass?

V-ing form

could I be massing?
could you be massing?
could he be massing?
could we be massing?
could you be massing?
could they be massing?

Perfect

could I have massed?
could you have massed?
could he have massed?
could we have massed?
could you have massed?
could they have massed?

V-ing perfect

could I have been massing?
could you have been massing?
could he have been massing?
could we have been massing?
could you have been massing?
could they have been massing?

Interro-negative form

Simple form

couldn't I mass?
couldn't you mass?
couldn't he mass?
couldn't we mass?
couldn't you mass?
couldn't they mass?

V-ing form

couldn't I be massing?
couldn't you be massing?
couldn't he be massing?
couldn't we be massing?
couldn't you be massing?
couldn't they be massing?

Perfect

couldn't I have massed?
couldn't you have massed?
couldn't he have massed?
couldn't we have massed?
couldn't you have massed?
couldn't they have massed?

V-ing perfect

couldn't I have been massing?
couldn't you have been massing?
couldn't he have been massing?
couldn't we have been massing?
couldn't you have been massing?
couldn't they have been massing?

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