I can panic you can panic he can panic we can panic you can panic they can panic
V-ing form
I can be panicing you can be panicing he can be panicing we can be panicing you can be panicing they can be panicing
Perfect
I can have paniced you can have paniced he can have paniced we can have paniced you can have paniced they can have paniced
V-ing perfect
I can have been panicing you can have been panicing he can have been panicing we can have been panicing you can have been panicing they can have been panicing
Negation
Simple form
I can't panic you can't panic he can't panic we can't panic you can't panic they can't panic
V-ing form
I can't be panicing you can't be panicing he can't be panicing we can't be panicing you can't be panicing they can't be panicing
Perfect
I can't have paniced you can't have paniced he can't have paniced we can't have paniced you can't have paniced they can't have paniced
V-ing perfect
I can't have been panicing you can't have been panicing he can't have been panicing we can't have been panicing you can't have been panicing they can't have been panicing
Interrogative form
Simple form
can I panic? can you panic? can he panic? can we panic? can you panic? can they panic?
V-ing form
can I be panicing? can you be panicing? can he be panicing? can we be panicing? can you be panicing? can they be panicing?
Perfect
can I have paniced? can you have paniced? can he have paniced? can we have paniced? can you have paniced? can they have paniced?
V-ing perfect
can I have been panicing? can you have been panicing? can he have been panicing? can we have been panicing? can you have been panicing? can they have been panicing?
Interro-negative form
Simple form
can't I panic? can't you panic? can't he panic? can't we panic? can't you panic? can't they panic?
V-ing form
can't I be panicing? can't you be panicing? can't he be panicing? can't we be panicing? can't you be panicing? can't they be panicing?
Perfect
can't I have paniced? can't you have paniced? can't he have paniced? can't we have paniced? can't you have paniced? can't they have paniced?
V-ing perfect
can't I have been panicing? can't you have been panicing? can't he have been panicing? can't we have been panicing? can't you have been panicing? can't they have been panicing?