English verb conjugation
COULD MODEL

Regular verb: model - modelled - modelled

Affirmation

Simple form	V-ing form
I could model you could model she could model we could model you could model they could model	I could be modelling you could be modelling she could be modelling we could be modelling you could be modelling they could be modelling
Perfect	V-ing perfect
I could have modelled you could have modelled she could have modelled we could have modelled you could have modelled they could have modelled	I could have been modelling you could have been modelling she could have been modelling we could have been modelling you could have been modelling they could have been modelling

Negation

Simple form	V-ing form
I could not model you could not model she could not model we could not model you could not model they could not model	I could not be modelling you could not be modelling she could not be modelling we could not be modelling you could not be modelling they could not be modelling
Perfect	V-ing perfect
I could not have modelled you could not have modelled she could not have modelled we could not have modelled you could not have modelled they could not have modelled	I could not have been modelling you could not have been modelling she could not have been modelling we could not have been modelling you could not have been modelling they could not have been modelling

Interrogative form

Simple form	V-ing form
could I model? could you model? could she model? could we model? could you model? could they model?	could I be modelling? could you be modelling? could she be modelling? could we be modelling? could you be modelling? could they be modelling?
Perfect	V-ing perfect
could I have modelled? could you have modelled? could she have modelled? could we have modelled? could you have modelled? could they have modelled?	could I have been modelling? could you have been modelling? could she have been modelling? could we have been modelling? could you have been modelling? could they have been modelling?

Interro-negative form

Simple form	V-ing form
could I not model? could you not model? could she not model? could we not model? could you not model? could they not model?	could I not be modelling? could you not be modelling? could she not be modelling? could we not be modelling? could you not be modelling? could they not be modelling?
Perfect	V-ing perfect
could I not have modelled? could you not have modelled? could she not have modelled? could we not have modelled? could you not have modelled? could they not have modelled?	could I not have been modelling? could you not have been modelling? could she not have been modelling? could we not have been modelling? could you not have been modelling? could they not have been modelling?