Conjugaison du verbe anglais COULD SMELL

I could smell
you could smell
he could smell
we could smell
you could smell
they could smell

I could be smelling
you could be smelling
he could be smelling
we could be smelling
you could be smelling
they could be smelling

I could have smelled, smelt
you could have smelled, smelt
he could have smelled, smelt
we could have smelled, smelt
you could have smelled, smelt
they could have smelled, smelt

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

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

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

I couldn't have smelled, smelt
you couldn't have smelled, smelt
he couldn't have smelled, smelt
we couldn't have smelled, smelt
you couldn't have smelled, smelt
they couldn't have smelled, smelt

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

could I smell?
could you smell?
could he smell?
could we smell?
could you smell?
could they smell?

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

could I have smelled, smelt?
could you have smelled, smelt?
could he have smelled, smelt?
could we have smelled, smelt?
could you have smelled, smelt?
could they have smelled, smelt?

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

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

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

couldn't I have smelled, smelt?
couldn't you have smelled, smelt?
couldn't he have smelled, smelt?
couldn't we have smelled, smelt?
couldn't you have smelled, smelt?
couldn't they have smelled, smelt?

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