I can degauss you can degauss he can degauss we can degauss you can degauss they can degauss
V-ing form
I can be degaussing you can be degaussing he can be degaussing we can be degaussing you can be degaussing they can be degaussing
Perfect
I can have degaussed you can have degaussed he can have degaussed we can have degaussed you can have degaussed they can have degaussed
V-ing perfect
I can have been degaussing you can have been degaussing he can have been degaussing we can have been degaussing you can have been degaussing they can have been degaussing
Negation
Simple form
I cannot degauss you cannot degauss he cannot degauss we cannot degauss you cannot degauss they cannot degauss
V-ing form
I cannot be degaussing you cannot be degaussing he cannot be degaussing we cannot be degaussing you cannot be degaussing they cannot be degaussing
Perfect
I cannot have degaussed you cannot have degaussed he cannot have degaussed we cannot have degaussed you cannot have degaussed they cannot have degaussed
V-ing perfect
I cannot have been degaussing you cannot have been degaussing he cannot have been degaussing we cannot have been degaussing you cannot have been degaussing they cannot have been degaussing
Interrogative form
Simple form
can I degauss? can you degauss? can he degauss? can we degauss? can you degauss? can they degauss?
V-ing form
can I be degaussing? can you be degaussing? can he be degaussing? can we be degaussing? can you be degaussing? can they be degaussing?
Perfect
can I have degaussed? can you have degaussed? can he have degaussed? can we have degaussed? can you have degaussed? can they have degaussed?
V-ing perfect
can I have been degaussing? can you have been degaussing? can he have been degaussing? can we have been degaussing? can you have been degaussing? can they have been degaussing?
Interro-negative form
Simple form
can I not degauss? can you not degauss? can he not degauss? can we not degauss? can you not degauss? can they not degauss?
V-ing form
can I not be degaussing? can you not be degaussing? can he not be degaussing? can we not be degaussing? can you not be degaussing? can they not be degaussing?
Perfect
can I not have degaussed? can you not have degaussed? can he not have degaussed? can we not have degaussed? can you not have degaussed? can they not have degaussed?
V-ing perfect
can I not have been degaussing? can you not have been degaussing? can he not have been degaussing? can we not have been degaussing? can you not have been degaussing? can they not have been degaussing?