English verb conjugation
CAN SANDPAPER

Regular verb: sandpaper - sandpapered - sandpapered

Affirmation

Simple form	V-ing form
I can sandpaper you can sandpaper he can sandpaper we can sandpaper you can sandpaper they can sandpaper	I can be sandpapering you can be sandpapering he can be sandpapering we can be sandpapering you can be sandpapering they can be sandpapering
Perfect	V-ing perfect
I can have sandpapered you can have sandpapered he can have sandpapered we can have sandpapered you can have sandpapered they can have sandpapered	I can have been sandpapering you can have been sandpapering he can have been sandpapering we can have been sandpapering you can have been sandpapering they can have been sandpapering

Negation

Simple form	V-ing form
I can't sandpaper you can't sandpaper he can't sandpaper we can't sandpaper you can't sandpaper they can't sandpaper	I can't be sandpapering you can't be sandpapering he can't be sandpapering we can't be sandpapering you can't be sandpapering they can't be sandpapering
Perfect	V-ing perfect
I can't have sandpapered you can't have sandpapered he can't have sandpapered we can't have sandpapered you can't have sandpapered they can't have sandpapered	I can't have been sandpapering you can't have been sandpapering he can't have been sandpapering we can't have been sandpapering you can't have been sandpapering they can't have been sandpapering

Interrogative form

Simple form	V-ing form
can I sandpaper? can you sandpaper? can he sandpaper? can we sandpaper? can you sandpaper? can they sandpaper?	can I be sandpapering? can you be sandpapering? can he be sandpapering? can we be sandpapering? can you be sandpapering? can they be sandpapering?
Perfect	V-ing perfect
can I have sandpapered? can you have sandpapered? can he have sandpapered? can we have sandpapered? can you have sandpapered? can they have sandpapered?	can I have been sandpapering? can you have been sandpapering? can he have been sandpapering? can we have been sandpapering? can you have been sandpapering? can they have been sandpapering?

Interro-negative form

Simple form	V-ing form
can't I sandpaper? can't you sandpaper? can't he sandpaper? can't we sandpaper? can't you sandpaper? can't they sandpaper?	can't I be sandpapering? can't you be sandpapering? can't he be sandpapering? can't we be sandpapering? can't you be sandpapering? can't they be sandpapering?
Perfect	V-ing perfect
can't I have sandpapered? can't you have sandpapered? can't he have sandpapered? can't we have sandpapered? can't you have sandpapered? can't they have sandpapered?	can't I have been sandpapering? can't you have been sandpapering? can't he have been sandpapering? can't we have been sandpapering? can't you have been sandpapering? can't they have been sandpapering?