I can sadden you can sadden he can sadden we can sadden you can sadden they can sadden
V-ing form
I can be saddening you can be saddening he can be saddening we can be saddening you can be saddening they can be saddening
Perfect
I can have saddened you can have saddened he can have saddened we can have saddened you can have saddened they can have saddened
V-ing perfect
I can have been saddening you can have been saddening he can have been saddening we can have been saddening you can have been saddening they can have been saddening
Negation
Simple form
I can't sadden you can't sadden he can't sadden we can't sadden you can't sadden they can't sadden
V-ing form
I can't be saddening you can't be saddening he can't be saddening we can't be saddening you can't be saddening they can't be saddening
Perfect
I can't have saddened you can't have saddened he can't have saddened we can't have saddened you can't have saddened they can't have saddened
V-ing perfect
I can't have been saddening you can't have been saddening he can't have been saddening we can't have been saddening you can't have been saddening they can't have been saddening
Interrogative form
Simple form
can I sadden? can you sadden? can he sadden? can we sadden? can you sadden? can they sadden?
V-ing form
can I be saddening? can you be saddening? can he be saddening? can we be saddening? can you be saddening? can they be saddening?
Perfect
can I have saddened? can you have saddened? can he have saddened? can we have saddened? can you have saddened? can they have saddened?
V-ing perfect
can I have been saddening? can you have been saddening? can he have been saddening? can we have been saddening? can you have been saddening? can they have been saddening?
Interro-negative form
Simple form
can't I sadden? can't you sadden? can't he sadden? can't we sadden? can't you sadden? can't they sadden?
V-ing form
can't I be saddening? can't you be saddening? can't he be saddening? can't we be saddening? can't you be saddening? can't they be saddening?
Perfect
can't I have saddened? can't you have saddened? can't he have saddened? can't we have saddened? can't you have saddened? can't they have saddened?
V-ing perfect
can't I have been saddening? can't you have been saddening? can't he have been saddening? can't we have been saddening? can't you have been saddening? can't they have been saddening?