must prick
Verbo regular: prick - pricked- pricked

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must prick
you must prick
he must prick
we must prick
you must prick
they must prick 	I must be pricking
you must be pricking
he must be pricking
we must be pricking
you must be pricking
they must be pricking	I must have pricked
you must have pricked
he must have pricked
we must have pricked
you must have pricked
they must have pricked	I must have been pricking
you must have been pricking
he must have been pricking
we must have been pricking
you must have been pricking
they must have been pricking	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not prick
you must not prick
he must not prick
we must not prick
you must not prick
they must not prick 	I must not be pricking
you must not be pricking
he must not be pricking
we must not be pricking
you must not be pricking
they must not be pricking	I must not have pricked
you must not have pricked
he must not have pricked
we must not have pricked
you must not have pricked
they must not have pricked	I must not have been pricking
you must not have been pricking
he must not have been pricking
we must not have been pricking
you must not have been pricking
they must not have been pricking	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I prick?
must you prick?
must he prick?
must we prick?
must you prick?
must they prick? 	must I be pricking?
must you be pricking?
must he be pricking?
must we be pricking?
must you be pricking?
must they be pricking? 	must I have pricked?
must you have pricked?
must he have pricked?
must we have pricked?
must you have pricked?
must they have pricked? 	must I have been pricking?
must you have been pricking?
must he have been pricking?
must we have been pricking?
must you have been pricking?
must they have been pricking? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not prick?
must you not prick?
must he not prick?
must we not prick?
must you not prick?
must they not prick? 	must I not be pricking?
must you not be pricking?
must he not be pricking?
must we not be pricking?
must you not be pricking?
must they not be pricking? 	must I not have pricked?
must you not have pricked?
must he not have pricked?
must we not have pricked?
must you not have pricked?
must they not have pricked? 	must I not have been pricking?
must you not have been pricking?
must he not have been pricking?
must we not have been pricking?
must you not have been pricking?
must they not have been pricking?