I can ratify you can ratify she can ratify we can ratify you can ratify they can ratify
V-ing form
I can be ratifying you can be ratifying she can be ratifying we can be ratifying you can be ratifying they can be ratifying
Perfect
I can have ratified you can have ratified she can have ratified we can have ratified you can have ratified they can have ratified
V-ing perfect
I can have been ratifying you can have been ratifying she can have been ratifying we can have been ratifying you can have been ratifying they can have been ratifying
Negation
Simple form
I can't ratify you can't ratify she can't ratify we can't ratify you can't ratify they can't ratify
V-ing form
I can't be ratifying you can't be ratifying she can't be ratifying we can't be ratifying you can't be ratifying they can't be ratifying
Perfect
I can't have ratified you can't have ratified she can't have ratified we can't have ratified you can't have ratified they can't have ratified
V-ing perfect
I can't have been ratifying you can't have been ratifying she can't have been ratifying we can't have been ratifying you can't have been ratifying they can't have been ratifying
Interrogative form
Simple form
can I ratify? can you ratify? can she ratify? can we ratify? can you ratify? can they ratify?
V-ing form
can I be ratifying? can you be ratifying? can she be ratifying? can we be ratifying? can you be ratifying? can they be ratifying?
Perfect
can I have ratified? can you have ratified? can she have ratified? can we have ratified? can you have ratified? can they have ratified?
V-ing perfect
can I have been ratifying? can you have been ratifying? can she have been ratifying? can we have been ratifying? can you have been ratifying? can they have been ratifying?
Interro-negative form
Simple form
can't I ratify? can't you ratify? can't she ratify? can't we ratify? can't you ratify? can't they ratify?
V-ing form
can't I be ratifying? can't you be ratifying? can't she be ratifying? can't we be ratifying? can't you be ratifying? can't they be ratifying?
Perfect
can't I have ratified? can't you have ratified? can't she have ratified? can't we have ratified? can't you have ratified? can't they have ratified?
V-ing perfect
can't I have been ratifying? can't you have been ratifying? can't she have been ratifying? can't we have been ratifying? can't you have been ratifying? can't they have been ratifying?