I can smell you can smell she can smell we can smell you can smell they can smell
V-ing form
I can be smelling you can be smelling she can be smelling we can be smelling you can be smelling they can be smelling
Perfect
I can have smelled, smelt you can have smelled, smelt she can have smelled, smelt we can have smelled, smelt you can have smelled, smelt they can have smelled, smelt
V-ing perfect
I can have been smelling you can have been smelling she can have been smelling we can have been smelling you can have been smelling they can have been smelling
Negation
Simple form
I can't smell you can't smell she can't smell we can't smell you can't smell they can't smell
V-ing form
I can't be smelling you can't be smelling she can't be smelling we can't be smelling you can't be smelling they can't be smelling
Perfect
I can't have smelled, smelt you can't have smelled, smelt she can't have smelled, smelt we can't have smelled, smelt you can't have smelled, smelt they can't have smelled, smelt
V-ing perfect
I can't have been smelling you can't have been smelling she can't have been smelling we can't have been smelling you can't have been smelling they can't have been smelling
Interrogative form
Simple form
can I smell? can you smell? can she smell? can we smell? can you smell? can they smell?
V-ing form
can I be smelling? can you be smelling? can she be smelling? can we be smelling? can you be smelling? can they be smelling?
Perfect
can I have smelled, smelt? can you have smelled, smelt? can she have smelled, smelt? can we have smelled, smelt? can you have smelled, smelt? can they have smelled, smelt?
V-ing perfect
can I have been smelling? can you have been smelling? can she have been smelling? can we have been smelling? can you have been smelling? can they have been smelling?
Interro-negative form
Simple form
can't I smell? can't you smell? can't she smell? can't we smell? can't you smell? can't they smell?
V-ing form
can't I be smelling? can't you be smelling? can't she be smelling? can't we be smelling? can't you be smelling? can't they be smelling?
Perfect
can't I have smelled, smelt? can't you have smelled, smelt? can't she have smelled, smelt? can't we have smelled, smelt? can't you have smelled, smelt? can't they have smelled, smelt?
V-ing perfect
can't I have been smelling? can't you have been smelling? can't she have been smelling? can't we have been smelling? can't you have been smelling? can't they have been smelling?