I can devitalize you can devitalize he can devitalize we can devitalize you can devitalize they can devitalize
V-ing form
I can be devitalizing you can be devitalizing he can be devitalizing we can be devitalizing you can be devitalizing they can be devitalizing
Perfect
I can have devitalized you can have devitalized he can have devitalized we can have devitalized you can have devitalized they can have devitalized
V-ing perfect
I can have been devitalizing you can have been devitalizing he can have been devitalizing we can have been devitalizing you can have been devitalizing they can have been devitalizing
Negation
Simple form
I cannot devitalize you cannot devitalize he cannot devitalize we cannot devitalize you cannot devitalize they cannot devitalize
V-ing form
I cannot be devitalizing you cannot be devitalizing he cannot be devitalizing we cannot be devitalizing you cannot be devitalizing they cannot be devitalizing
Perfect
I cannot have devitalized you cannot have devitalized he cannot have devitalized we cannot have devitalized you cannot have devitalized they cannot have devitalized
V-ing perfect
I cannot have been devitalizing you cannot have been devitalizing he cannot have been devitalizing we cannot have been devitalizing you cannot have been devitalizing they cannot have been devitalizing
Interrogative form
Simple form
can I devitalize? can you devitalize? can he devitalize? can we devitalize? can you devitalize? can they devitalize?
V-ing form
can I be devitalizing? can you be devitalizing? can he be devitalizing? can we be devitalizing? can you be devitalizing? can they be devitalizing?
Perfect
can I have devitalized? can you have devitalized? can he have devitalized? can we have devitalized? can you have devitalized? can they have devitalized?
V-ing perfect
can I have been devitalizing? can you have been devitalizing? can he have been devitalizing? can we have been devitalizing? can you have been devitalizing? can they have been devitalizing?
Interro-negative form
Simple form
can I not devitalize? can you not devitalize? can he not devitalize? can we not devitalize? can you not devitalize? can they not devitalize?
V-ing form
can I not be devitalizing? can you not be devitalizing? can he not be devitalizing? can we not be devitalizing? can you not be devitalizing? can they not be devitalizing?
Perfect
can I not have devitalized? can you not have devitalized? can he not have devitalized? can we not have devitalized? can you not have devitalized? can they not have devitalized?
V-ing perfect
can I not have been devitalizing? can you not have been devitalizing? can he not have been devitalizing? can we not have been devitalizing? can you not have been devitalizing? can they not have been devitalizing?