I can preadapt you can preadapt he can preadapt we can preadapt you can preadapt they can preadapt
V-ing form
I can be preadapting you can be preadapting he can be preadapting we can be preadapting you can be preadapting they can be preadapting
Perfect
I can have preadapted you can have preadapted he can have preadapted we can have preadapted you can have preadapted they can have preadapted
V-ing perfect
I can have been preadapting you can have been preadapting he can have been preadapting we can have been preadapting you can have been preadapting they can have been preadapting
Negation
Simple form
I cannot preadapt you cannot preadapt he cannot preadapt we cannot preadapt you cannot preadapt they cannot preadapt
V-ing form
I cannot be preadapting you cannot be preadapting he cannot be preadapting we cannot be preadapting you cannot be preadapting they cannot be preadapting
Perfect
I cannot have preadapted you cannot have preadapted he cannot have preadapted we cannot have preadapted you cannot have preadapted they cannot have preadapted
V-ing perfect
I cannot have been preadapting you cannot have been preadapting he cannot have been preadapting we cannot have been preadapting you cannot have been preadapting they cannot have been preadapting
Interrogative form
Simple form
can I preadapt? can you preadapt? can he preadapt? can we preadapt? can you preadapt? can they preadapt?
V-ing form
can I be preadapting? can you be preadapting? can he be preadapting? can we be preadapting? can you be preadapting? can they be preadapting?
Perfect
can I have preadapted? can you have preadapted? can he have preadapted? can we have preadapted? can you have preadapted? can they have preadapted?
V-ing perfect
can I have been preadapting? can you have been preadapting? can he have been preadapting? can we have been preadapting? can you have been preadapting? can they have been preadapting?
Interro-negative form
Simple form
can I not preadapt? can you not preadapt? can he not preadapt? can we not preadapt? can you not preadapt? can they not preadapt?
V-ing form
can I not be preadapting? can you not be preadapting? can he not be preadapting? can we not be preadapting? can you not be preadapting? can they not be preadapting?
Perfect
can I not have preadapted? can you not have preadapted? can he not have preadapted? can we not have preadapted? can you not have preadapted? can they not have preadapted?
V-ing perfect
can I not have been preadapting? can you not have been preadapting? can he not have been preadapting? can we not have been preadapting? can you not have been preadapting? can they not have been preadapting?