I can furnish you can furnish he can furnish we can furnish you can furnish they can furnish
V-ing form
I can be furnishing you can be furnishing he can be furnishing we can be furnishing you can be furnishing they can be furnishing
Perfect
I can have furnished you can have furnished he can have furnished we can have furnished you can have furnished they can have furnished
V-ing perfect
I can have been furnishing you can have been furnishing he can have been furnishing we can have been furnishing you can have been furnishing they can have been furnishing
Negation
Simple form
I can't furnish you can't furnish he can't furnish we can't furnish you can't furnish they can't furnish
V-ing form
I can't be furnishing you can't be furnishing he can't be furnishing we can't be furnishing you can't be furnishing they can't be furnishing
Perfect
I can't have furnished you can't have furnished he can't have furnished we can't have furnished you can't have furnished they can't have furnished
V-ing perfect
I can't have been furnishing you can't have been furnishing he can't have been furnishing we can't have been furnishing you can't have been furnishing they can't have been furnishing
Interrogative form
Simple form
can I furnish? can you furnish? can he furnish? can we furnish? can you furnish? can they furnish?
V-ing form
can I be furnishing? can you be furnishing? can he be furnishing? can we be furnishing? can you be furnishing? can they be furnishing?
Perfect
can I have furnished? can you have furnished? can he have furnished? can we have furnished? can you have furnished? can they have furnished?
V-ing perfect
can I have been furnishing? can you have been furnishing? can he have been furnishing? can we have been furnishing? can you have been furnishing? can they have been furnishing?
Interro-negative form
Simple form
can't I furnish? can't you furnish? can't he furnish? can't we furnish? can't you furnish? can't they furnish?
V-ing form
can't I be furnishing? can't you be furnishing? can't he be furnishing? can't we be furnishing? can't you be furnishing? can't they be furnishing?
Perfect
can't I have furnished? can't you have furnished? can't he have furnished? can't we have furnished? can't you have furnished? can't they have furnished?
V-ing perfect
can't I have been furnishing? can't you have been furnishing? can't he have been furnishing? can't we have been furnishing? can't you have been furnishing? can't they have been furnishing?