English verb conjugation COULD GRASS

Regular verb: grass - grassed - grassed

Affirmation

Simple form

I could grass
you could grass
she could grass
we could grass
you could grass
they could grass

V-ing form

I could be grassing
you could be grassing
she could be grassing
we could be grassing
you could be grassing
they could be grassing

Perfect

I could have grassed
you could have grassed
she could have grassed
we could have grassed
you could have grassed
they could have grassed

V-ing perfect

I could have been grassing
you could have been grassing
she could have been grassing
we could have been grassing
you could have been grassing
they could have been grassing

Negation

Simple form

I could not grass
you could not grass
she could not grass
we could not grass
you could not grass
they could not grass

V-ing form

I could not be grassing
you could not be grassing
she could not be grassing
we could not be grassing
you could not be grassing
they could not be grassing

Perfect

I could not have grassed
you could not have grassed
she could not have grassed
we could not have grassed
you could not have grassed
they could not have grassed

V-ing perfect

I could not have been grassing
you could not have been grassing
she could not have been grassing
we could not have been grassing
you could not have been grassing
they could not have been grassing

Interrogative form

Simple form

could I grass?
could you grass?
could she grass?
could we grass?
could you grass?
could they grass?

V-ing form

could I be grassing?
could you be grassing?
could she be grassing?
could we be grassing?
could you be grassing?
could they be grassing?

Perfect

could I have grassed?
could you have grassed?
could she have grassed?
could we have grassed?
could you have grassed?
could they have grassed?

V-ing perfect

could I have been grassing?
could you have been grassing?
could she have been grassing?
could we have been grassing?
could you have been grassing?
could they have been grassing?

Interro-negative form

Simple form

could I not grass?
could you not grass?
could she not grass?
could we not grass?
could you not grass?
could they not grass?

V-ing form

could I not be grassing?
could you not be grassing?
could she not be grassing?
could we not be grassing?
could you not be grassing?
could they not be grassing?

Perfect

could I not have grassed?
could you not have grassed?
could she not have grassed?
could we not have grassed?
could you not have grassed?
could they not have grassed?

V-ing perfect

could I not have been grassing?
could you not have been grassing?
could she not have been grassing?
could we not have been grassing?
could you not have been grassing?
could they not have been grassing?

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