I can weatherproof you can weatherproof he can weatherproof we can weatherproof you can weatherproof they can weatherproof
V-ing form
I can be weatherproofing you can be weatherproofing he can be weatherproofing we can be weatherproofing you can be weatherproofing they can be weatherproofing
Perfect
I can have weatherproofed you can have weatherproofed he can have weatherproofed we can have weatherproofed you can have weatherproofed they can have weatherproofed
V-ing perfect
I can have been weatherproofing you can have been weatherproofing he can have been weatherproofing we can have been weatherproofing you can have been weatherproofing they can have been weatherproofing
Negation
Simple form
I cannot weatherproof you cannot weatherproof he cannot weatherproof we cannot weatherproof you cannot weatherproof they cannot weatherproof
V-ing form
I cannot be weatherproofing you cannot be weatherproofing he cannot be weatherproofing we cannot be weatherproofing you cannot be weatherproofing they cannot be weatherproofing
Perfect
I cannot have weatherproofed you cannot have weatherproofed he cannot have weatherproofed we cannot have weatherproofed you cannot have weatherproofed they cannot have weatherproofed
V-ing perfect
I cannot have been weatherproofing you cannot have been weatherproofing he cannot have been weatherproofing we cannot have been weatherproofing you cannot have been weatherproofing they cannot have been weatherproofing
Interrogative form
Simple form
can I weatherproof? can you weatherproof? can he weatherproof? can we weatherproof? can you weatherproof? can they weatherproof?
V-ing form
can I be weatherproofing? can you be weatherproofing? can he be weatherproofing? can we be weatherproofing? can you be weatherproofing? can they be weatherproofing?
Perfect
can I have weatherproofed? can you have weatherproofed? can he have weatherproofed? can we have weatherproofed? can you have weatherproofed? can they have weatherproofed?
V-ing perfect
can I have been weatherproofing? can you have been weatherproofing? can he have been weatherproofing? can we have been weatherproofing? can you have been weatherproofing? can they have been weatherproofing?
Interro-negative form
Simple form
can I not weatherproof? can you not weatherproof? can he not weatherproof? can we not weatherproof? can you not weatherproof? can they not weatherproof?
V-ing form
can I not be weatherproofing? can you not be weatherproofing? can he not be weatherproofing? can we not be weatherproofing? can you not be weatherproofing? can they not be weatherproofing?
Perfect
can I not have weatherproofed? can you not have weatherproofed? can he not have weatherproofed? can we not have weatherproofed? can you not have weatherproofed? can they not have weatherproofed?
V-ing perfect
can I not have been weatherproofing? can you not have been weatherproofing? can he not have been weatherproofing? can we not have been weatherproofing? can you not have been weatherproofing? can they not have been weatherproofing?