I can molder you can molder he can molder we can molder you can molder they can molder
V-ing form
I can be moldering you can be moldering he can be moldering we can be moldering you can be moldering they can be moldering
Perfect
I can have moldered you can have moldered he can have moldered we can have moldered you can have moldered they can have moldered
V-ing perfect
I can have been moldering you can have been moldering he can have been moldering we can have been moldering you can have been moldering they can have been moldering
Negation
Simple form
I can't molder you can't molder he can't molder we can't molder you can't molder they can't molder
V-ing form
I can't be moldering you can't be moldering he can't be moldering we can't be moldering you can't be moldering they can't be moldering
Perfect
I can't have moldered you can't have moldered he can't have moldered we can't have moldered you can't have moldered they can't have moldered
V-ing perfect
I can't have been moldering you can't have been moldering he can't have been moldering we can't have been moldering you can't have been moldering they can't have been moldering
Interrogative form
Simple form
can I molder? can you molder? can he molder? can we molder? can you molder? can they molder?
V-ing form
can I be moldering? can you be moldering? can he be moldering? can we be moldering? can you be moldering? can they be moldering?
Perfect
can I have moldered? can you have moldered? can he have moldered? can we have moldered? can you have moldered? can they have moldered?
V-ing perfect
can I have been moldering? can you have been moldering? can he have been moldering? can we have been moldering? can you have been moldering? can they have been moldering?
Interro-negative form
Simple form
can't I molder? can't you molder? can't he molder? can't we molder? can't you molder? can't they molder?
V-ing form
can't I be moldering? can't you be moldering? can't he be moldering? can't we be moldering? can't you be moldering? can't they be moldering?
Perfect
can't I have moldered? can't you have moldered? can't he have moldered? can't we have moldered? can't you have moldered? can't they have moldered?
V-ing perfect
can't I have been moldering? can't you have been moldering? can't he have been moldering? can't we have been moldering? can't you have been moldering? can't they have been moldering?