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 cannot taper you cannot taper he cannot taper we cannot taper you cannot taper they cannot taper	I cannot be tapering you cannot be tapering he cannot be tapering we cannot be tapering you cannot be tapering they cannot be tapering
Perfect	V-ing perfect
I cannot have tapered you cannot have tapered he cannot have tapered we cannot have tapered you cannot have tapered they cannot have tapered	I cannot have been tapering you cannot have been tapering he cannot have been tapering we cannot have been tapering you cannot have been tapering they cannot 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 I not taper? can you not taper? can he not taper? can we not taper? can you not taper? can they not taper?	can I not be tapering? can you not be tapering? can he not be tapering? can we not be tapering? can you not be tapering? can they not be tapering?
Perfect	V-ing perfect
can I not have tapered? can you not have tapered? can he not have tapered? can we not have tapered? can you not have tapered? can they not have tapered?	can I not have been tapering? can you not have been tapering? can he not have been tapering? can we not have been tapering? can you not have been tapering? can they not have been tapering?