Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I must scheme scheme you must scheme scheme he must scheme scheme we must scheme scheme you must scheme scheme they must scheme scheme
V-ing form
I must be scheme scheming you must be scheme scheming he must be scheme scheming we must be scheme scheming you must be scheme scheming they must be scheme scheming
Perfect
I must have scheme schemed you must have scheme schemed he must have scheme schemed we must have scheme schemed you must have scheme schemed they must have scheme schemed
V-ing perfect
I must have been scheme scheming you must have been scheme scheming he must have been scheme scheming we must have been scheme scheming you must have been scheme scheming they must have been scheme scheming
Negation
Simple form
I must not scheme scheme you must not scheme scheme he must not scheme scheme we must not scheme scheme you must not scheme scheme they must not scheme scheme
V-ing form
I must not be scheme scheming you must not be scheme scheming he must not be scheme scheming we must not be scheme scheming you must not be scheme scheming they must not be scheme scheming
Perfect
I must not have scheme schemed you must not have scheme schemed he must not have scheme schemed we must not have scheme schemed you must not have scheme schemed they must not have scheme schemed
V-ing perfect
I must not have been scheme scheming you must not have been scheme scheming he must not have been scheme scheming we must not have been scheme scheming you must not have been scheme scheming they must not have been scheme scheming
Interrogative form
Simple form
must I scheme scheme? must you scheme scheme? must he scheme scheme? must we scheme scheme? must you scheme scheme? must they scheme scheme?
V-ing form
must I be scheme scheming? must you be scheme scheming? must he be scheme scheming? must we be scheme scheming? must you be scheme scheming? must they be scheme scheming?
Perfect
must I have scheme schemed? must you have scheme schemed? must he have scheme schemed? must we have scheme schemed? must you have scheme schemed? must they have scheme schemed?
V-ing perfect
must I have been scheme scheming? must you have been scheme scheming? must he have been scheme scheming? must we have been scheme scheming? must you have been scheme scheming? must they have been scheme scheming?
Interro-negative form
Simple form
must I not scheme scheme? must you not scheme scheme? must he not scheme scheme? must we not scheme scheme? must you not scheme scheme? must they not scheme scheme?
V-ing form
must I not be scheme scheming? must you not be scheme scheming? must he not be scheme scheming? must we not be scheme scheming? must you not be scheme scheming? must they not be scheme scheming?
Perfect
must I not have scheme schemed? must you not have scheme schemed? must he not have scheme schemed? must we not have scheme schemed? must you not have scheme schemed? must they not have scheme schemed?
V-ing perfect
must I not have been scheme scheming? must you not have been scheme scheming? must he not have been scheme scheming? must we not have been scheme scheming? must you not have been scheme scheming? must they not have been scheme scheming?