English verb conjugation COULD SMILE

Regular verb: smile - smiled - smiled

Affirmation

Simple form

I could smile
you could smile
he could smile
we could smile
you could smile
they could smile

V-ing form

I could be smiling
you could be smiling
he could be smiling
we could be smiling
you could be smiling
they could be smiling

Perfect

I could have smiled
you could have smiled
he could have smiled
we could have smiled
you could have smiled
they could have smiled

V-ing perfect

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

Negation

Simple form

I could not smile
you could not smile
he could not smile
we could not smile
you could not smile
they could not smile

V-ing form

I could not be smiling
you could not be smiling
he could not be smiling
we could not be smiling
you could not be smiling
they could not be smiling

Perfect

I could not have smiled
you could not have smiled
he could not have smiled
we could not have smiled
you could not have smiled
they could not have smiled

V-ing perfect

I could not have been smiling
you could not have been smiling
he could not have been smiling
we could not have been smiling
you could not have been smiling
they could not have been smiling

Interrogative form

Simple form

could I smile?
could you smile?
could he smile?
could we smile?
could you smile?
could they smile?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

could I not smile?
could you not smile?
could he not smile?
could we not smile?
could you not smile?
could they not smile?

V-ing form

could I not be smiling?
could you not be smiling?
could he not be smiling?
could we not be smiling?
could you not be smiling?
could they not be smiling?

Perfect

could I not have smiled?
could you not have smiled?
could he not have smiled?
could we not have smiled?
could you not have smiled?
could they not have smiled?

V-ing perfect

could I not have been smiling?
could you not have been smiling?
could he not have been smiling?
could we not have been smiling?
could you not have been smiling?
could they not have been smiling?

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