English verb conjugation
MUST TAPER

Regular verb: taper - tapered - tapered

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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