I can ameliorate you can ameliorate he can ameliorate we can ameliorate you can ameliorate they can ameliorate
V-ing form
I can be ameliorating you can be ameliorating he can be ameliorating we can be ameliorating you can be ameliorating they can be ameliorating
Perfect
I can have ameliorated you can have ameliorated he can have ameliorated we can have ameliorated you can have ameliorated they can have ameliorated
V-ing perfect
I can have been ameliorating you can have been ameliorating he can have been ameliorating we can have been ameliorating you can have been ameliorating they can have been ameliorating
Negation
Simple form
I can't ameliorate you can't ameliorate he can't ameliorate we can't ameliorate you can't ameliorate they can't ameliorate
V-ing form
I can't be ameliorating you can't be ameliorating he can't be ameliorating we can't be ameliorating you can't be ameliorating they can't be ameliorating
Perfect
I can't have ameliorated you can't have ameliorated he can't have ameliorated we can't have ameliorated you can't have ameliorated they can't have ameliorated
V-ing perfect
I can't have been ameliorating you can't have been ameliorating he can't have been ameliorating we can't have been ameliorating you can't have been ameliorating they can't have been ameliorating
Interrogative form
Simple form
can I ameliorate? can you ameliorate? can he ameliorate? can we ameliorate? can you ameliorate? can they ameliorate?
V-ing form
can I be ameliorating? can you be ameliorating? can he be ameliorating? can we be ameliorating? can you be ameliorating? can they be ameliorating?
Perfect
can I have ameliorated? can you have ameliorated? can he have ameliorated? can we have ameliorated? can you have ameliorated? can they have ameliorated?
V-ing perfect
can I have been ameliorating? can you have been ameliorating? can he have been ameliorating? can we have been ameliorating? can you have been ameliorating? can they have been ameliorating?
Interro-negative form
Simple form
can't I ameliorate? can't you ameliorate? can't he ameliorate? can't we ameliorate? can't you ameliorate? can't they ameliorate?
V-ing form
can't I be ameliorating? can't you be ameliorating? can't he be ameliorating? can't we be ameliorating? can't you be ameliorating? can't they be ameliorating?
Perfect
can't I have ameliorated? can't you have ameliorated? can't he have ameliorated? can't we have ameliorated? can't you have ameliorated? can't they have ameliorated?
V-ing perfect
can't I have been ameliorating? can't you have been ameliorating? can't he have been ameliorating? can't we have been ameliorating? can't you have been ameliorating? can't they have been ameliorating?