English verb conjugation
MUST SCLAFF

Regular verb: sclaff - sclaffed - sclaffed

Affirmation

Simple form	V-ing form
I must sclaff you must sclaff he must sclaff we must sclaff you must sclaff they must sclaff	I must be sclaffing you must be sclaffing he must be sclaffing we must be sclaffing you must be sclaffing they must be sclaffing
Perfect	V-ing perfect
I must have sclaffed you must have sclaffed he must have sclaffed we must have sclaffed you must have sclaffed they must have sclaffed	I must have been sclaffing you must have been sclaffing he must have been sclaffing we must have been sclaffing you must have been sclaffing they must have been sclaffing

Negation

Simple form	V-ing form
I must not sclaff you must not sclaff he must not sclaff we must not sclaff you must not sclaff they must not sclaff	I must not be sclaffing you must not be sclaffing he must not be sclaffing we must not be sclaffing you must not be sclaffing they must not be sclaffing
Perfect	V-ing perfect
I must not have sclaffed you must not have sclaffed he must not have sclaffed we must not have sclaffed you must not have sclaffed they must not have sclaffed	I must not have been sclaffing you must not have been sclaffing he must not have been sclaffing we must not have been sclaffing you must not have been sclaffing they must not have been sclaffing

Interrogative form

Simple form	V-ing form
must I sclaff? must you sclaff? must he sclaff? must we sclaff? must you sclaff? must they sclaff?	must I be sclaffing? must you be sclaffing? must he be sclaffing? must we be sclaffing? must you be sclaffing? must they be sclaffing?
Perfect	V-ing perfect
must I have sclaffed? must you have sclaffed? must he have sclaffed? must we have sclaffed? must you have sclaffed? must they have sclaffed?	must I have been sclaffing? must you have been sclaffing? must he have been sclaffing? must we have been sclaffing? must you have been sclaffing? must they have been sclaffing?

Interro-negative form

Simple form	V-ing form
must I not sclaff? must you not sclaff? must he not sclaff? must we not sclaff? must you not sclaff? must they not sclaff?	must I not be sclaffing? must you not be sclaffing? must he not be sclaffing? must we not be sclaffing? must you not be sclaffing? must they not be sclaffing?
Perfect	V-ing perfect
must I not have sclaffed? must you not have sclaffed? must he not have sclaffed? must we not have sclaffed? must you not have sclaffed? must they not have sclaffed?	must I not have been sclaffing? must you not have been sclaffing? must he not have been sclaffing? must we not have been sclaffing? must you not have been sclaffing? must they not have been sclaffing?