English verb conjugation
CAN TAPER

Regular verb: taper - tapered - tapered

Affirmation

Simple form	V-ing form
I can taper you can taper he can taper we can taper you can taper they can taper	I can be tapering you can be tapering he can be tapering we can be tapering you can be tapering they can be tapering
Perfect	V-ing perfect
I can have tapered you can have tapered he can have tapered we can have tapered you can have tapered they can have tapered	I can have been tapering you can have been tapering he can have been tapering we can have been tapering you can have been tapering they can have been tapering

Negation

Simple form	V-ing form
I can't taper you can't taper he can't taper we can't taper you can't taper they can't taper	I can't be tapering you can't be tapering he can't be tapering we can't be tapering you can't be tapering they can't be tapering
Perfect	V-ing perfect
I can't have tapered you can't have tapered he can't have tapered we can't have tapered you can't have tapered they can't have tapered	I can't have been tapering you can't have been tapering he can't have been tapering we can't have been tapering you can't have been tapering they can't have been tapering

Interrogative form

Simple form	V-ing form
can I taper? can you taper? can he taper? can we taper? can you taper? can they taper?	can I be tapering? can you be tapering? can he be tapering? can we be tapering? can you be tapering? can they be tapering?
Perfect	V-ing perfect
can I have tapered? can you have tapered? can he have tapered? can we have tapered? can you have tapered? can they have tapered?	can I have been tapering? can you have been tapering? can he have been tapering? can we have been tapering? can you have been tapering? can they have been tapering?

Interro-negative form

Simple form	V-ing form
can't I taper? can't you taper? can't he taper? can't we taper? can't you taper? can't they taper?	can't I be tapering? can't you be tapering? can't he be tapering? can't we be tapering? can't you be tapering? can't they be tapering?
Perfect	V-ing perfect
can't I have tapered? can't you have tapered? can't he have tapered? can't we have tapered? can't you have tapered? can't they have tapered?	can't I have been tapering? can't you have been tapering? can't he have been tapering? can't we have been tapering? can't you have been tapering? can't they have been tapering?