English verb conjugation
CAN WITHER

Regular verb: wither - withered - withered

Affirmation

Simple form	V-ing form
I can wither you can wither he can wither we can wither you can wither they can wither	I can be withering you can be withering he can be withering we can be withering you can be withering they can be withering
Perfect	V-ing perfect
I can have withered you can have withered he can have withered we can have withered you can have withered they can have withered	I can have been withering you can have been withering he can have been withering we can have been withering you can have been withering they can have been withering

Negation

Simple form	V-ing form
I cannot wither you cannot wither he cannot wither we cannot wither you cannot wither they cannot wither	I cannot be withering you cannot be withering he cannot be withering we cannot be withering you cannot be withering they cannot be withering
Perfect	V-ing perfect
I cannot have withered you cannot have withered he cannot have withered we cannot have withered you cannot have withered they cannot have withered	I cannot have been withering you cannot have been withering he cannot have been withering we cannot have been withering you cannot have been withering they cannot have been withering

Interrogative form

Simple form	V-ing form
can I wither? can you wither? can he wither? can we wither? can you wither? can they wither?	can I be withering? can you be withering? can he be withering? can we be withering? can you be withering? can they be withering?
Perfect	V-ing perfect
can I have withered? can you have withered? can he have withered? can we have withered? can you have withered? can they have withered?	can I have been withering? can you have been withering? can he have been withering? can we have been withering? can you have been withering? can they have been withering?

Interro-negative form

Simple form	V-ing form
can I not wither? can you not wither? can he not wither? can we not wither? can you not wither? can they not wither?	can I not be withering? can you not be withering? can he not be withering? can we not be withering? can you not be withering? can they not be withering?
Perfect	V-ing perfect
can I not have withered? can you not have withered? can he not have withered? can we not have withered? can you not have withered? can they not have withered?	can I not have been withering? can you not have been withering? can he not have been withering? can we not have been withering? can you not have been withering? can they not have been withering?