I can decerebrate you can decerebrate he can decerebrate we can decerebrate you can decerebrate they can decerebrate
V-ing form
I can be decerebrating you can be decerebrating he can be decerebrating we can be decerebrating you can be decerebrating they can be decerebrating
Perfect
I can have decerebrated you can have decerebrated he can have decerebrated we can have decerebrated you can have decerebrated they can have decerebrated
V-ing perfect
I can have been decerebrating you can have been decerebrating he can have been decerebrating we can have been decerebrating you can have been decerebrating they can have been decerebrating
Negation
Simple form
I can't decerebrate you can't decerebrate he can't decerebrate we can't decerebrate you can't decerebrate they can't decerebrate
V-ing form
I can't be decerebrating you can't be decerebrating he can't be decerebrating we can't be decerebrating you can't be decerebrating they can't be decerebrating
Perfect
I can't have decerebrated you can't have decerebrated he can't have decerebrated we can't have decerebrated you can't have decerebrated they can't have decerebrated
V-ing perfect
I can't have been decerebrating you can't have been decerebrating he can't have been decerebrating we can't have been decerebrating you can't have been decerebrating they can't have been decerebrating
Interrogative form
Simple form
can I decerebrate? can you decerebrate? can he decerebrate? can we decerebrate? can you decerebrate? can they decerebrate?
V-ing form
can I be decerebrating? can you be decerebrating? can he be decerebrating? can we be decerebrating? can you be decerebrating? can they be decerebrating?
Perfect
can I have decerebrated? can you have decerebrated? can he have decerebrated? can we have decerebrated? can you have decerebrated? can they have decerebrated?
V-ing perfect
can I have been decerebrating? can you have been decerebrating? can he have been decerebrating? can we have been decerebrating? can you have been decerebrating? can they have been decerebrating?
Interro-negative form
Simple form
can't I decerebrate? can't you decerebrate? can't he decerebrate? can't we decerebrate? can't you decerebrate? can't they decerebrate?
V-ing form
can't I be decerebrating? can't you be decerebrating? can't he be decerebrating? can't we be decerebrating? can't you be decerebrating? can't they be decerebrating?
Perfect
can't I have decerebrated? can't you have decerebrated? can't he have decerebrated? can't we have decerebrated? can't you have decerebrated? can't they have decerebrated?
V-ing perfect
can't I have been decerebrating? can't you have been decerebrating? can't he have been decerebrating? can't we have been decerebrating? can't you have been decerebrating? can't they have been decerebrating?