I must frolic you must frolic she must frolic we must frolic you must frolic they must frolic
Forma com V-ing
I must be frolicing you must be frolicing she must be frolicing we must be frolicing you must be frolicing they must be frolicing
Perfeito
I must have froliced you must have froliced she must have froliced we must have froliced you must have froliced they must have froliced
Perfeito com V-ing
I must have been frolicing you must have been frolicing she must have been frolicing we must have been frolicing you must have been frolicing they must have been frolicing
Negação
Forma simple
I must not frolic you must not frolic she must not frolic we must not frolic you must not frolic they must not frolic
Forma com V-ing
I must not be frolicing you must not be frolicing she must not be frolicing we must not be frolicing you must not be frolicing they must not be frolicing
Perfeito
I must not have froliced you must not have froliced she must not have froliced we must not have froliced you must not have froliced they must not have froliced
Perfeito com V-ing
I must not have been frolicing you must not have been frolicing she must not have been frolicing we must not have been frolicing you must not have been frolicing they must not have been frolicing
Forma interrogativa
Forma simple
must I frolic? must you frolic? must she frolic? must we frolic? must you frolic? must they frolic?
Forma com V-ing
must I be frolicing? must you be frolicing? must she be frolicing? must we be frolicing? must you be frolicing? must they be frolicing?
Perfeito
must I have froliced? must you have froliced? must she have froliced? must we have froliced? must you have froliced? must they have froliced?
Perfeito com V-ing
must I have been frolicing? must you have been frolicing? must she have been frolicing? must we have been frolicing? must you have been frolicing? must they have been frolicing?
Forma interro-Negação
Forma simple
must I not frolic? must you not frolic? must she not frolic? must we not frolic? must you not frolic? must they not frolic?
Forma com V-ing
must I not be frolicing? must you not be frolicing? must she not be frolicing? must we not be frolicing? must you not be frolicing? must they not be frolicing?
Perfeito
must I not have froliced? must you not have froliced? must she not have froliced? must we not have froliced? must you not have froliced? must they not have froliced?
Perfeito com V-ing
must I not have been frolicing? must you not have been frolicing? must she not have been frolicing? must we not have been frolicing? must you not have been frolicing? must they not have been frolicing?