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 couldn't smile
you couldn't smile
he couldn't smile
we couldn't smile
you couldn't smile
they couldn't smile

V-ing form

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

Perfect

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

V-ing perfect

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

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

V-ing form

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

Perfect

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

V-ing perfect

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

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