I can hearten you can hearten he can hearten we can hearten you can hearten they can hearten
V-ing form
I can be heartening you can be heartening he can be heartening we can be heartening you can be heartening they can be heartening
Perfect
I can have heartened you can have heartened he can have heartened we can have heartened you can have heartened they can have heartened
V-ing perfect
I can have been heartening you can have been heartening he can have been heartening we can have been heartening you can have been heartening they can have been heartening
Negation
Simple form
I cannot hearten you cannot hearten he cannot hearten we cannot hearten you cannot hearten they cannot hearten
V-ing form
I cannot be heartening you cannot be heartening he cannot be heartening we cannot be heartening you cannot be heartening they cannot be heartening
Perfect
I cannot have heartened you cannot have heartened he cannot have heartened we cannot have heartened you cannot have heartened they cannot have heartened
V-ing perfect
I cannot have been heartening you cannot have been heartening he cannot have been heartening we cannot have been heartening you cannot have been heartening they cannot have been heartening
Interrogative form
Simple form
can I hearten? can you hearten? can he hearten? can we hearten? can you hearten? can they hearten?
V-ing form
can I be heartening? can you be heartening? can he be heartening? can we be heartening? can you be heartening? can they be heartening?
Perfect
can I have heartened? can you have heartened? can he have heartened? can we have heartened? can you have heartened? can they have heartened?
V-ing perfect
can I have been heartening? can you have been heartening? can he have been heartening? can we have been heartening? can you have been heartening? can they have been heartening?
Interro-negative form
Simple form
can I not hearten? can you not hearten? can he not hearten? can we not hearten? can you not hearten? can they not hearten?
V-ing form
can I not be heartening? can you not be heartening? can he not be heartening? can we not be heartening? can you not be heartening? can they not be heartening?
Perfect
can I not have heartened? can you not have heartened? can he not have heartened? can we not have heartened? can you not have heartened? can they not have heartened?
V-ing perfect
can I not have been heartening? can you not have been heartening? can he not have been heartening? can we not have been heartening? can you not have been heartening? can they not have been heartening?