I can ameliorate you can ameliorate she can ameliorate we can ameliorate you can ameliorate they can ameliorate
V-ing form
I can be ameliorating you can be ameliorating she can be ameliorating we can be ameliorating you can be ameliorating they can be ameliorating
Perfect
I can have ameliorated you can have ameliorated she 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 she 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 she 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 she 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 she 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 she 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 she ameliorate? can we ameliorate? can you ameliorate? can they ameliorate?
V-ing form
can I be ameliorating? can you be ameliorating? can she be ameliorating? can we be ameliorating? can you be ameliorating? can they be ameliorating?
Perfect
can I have ameliorated? can you have ameliorated? can she 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 she 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 she 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 she 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 she 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 she have been ameliorating? can't we have been ameliorating? can't you have been ameliorating? can't they have been ameliorating?