must chisel
Verbo regular: chisel - chiselled- chiselled

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must chisel
you must chisel
she must chisel
we must chisel
you must chisel
they must chisel 	I must be chiselling
you must be chiselling
she must be chiselling
we must be chiselling
you must be chiselling
they must be chiselling	I must have chiselled
you must have chiselled
she must have chiselled
we must have chiselled
you must have chiselled
they must have chiselled	I must have been chiselling
you must have been chiselling
she must have been chiselling
we must have been chiselling
you must have been chiselling
they must have been chiselling	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not chisel
you must not chisel
she must not chisel
we must not chisel
you must not chisel
they must not chisel 	I must not be chiselling
you must not be chiselling
she must not be chiselling
we must not be chiselling
you must not be chiselling
they must not be chiselling	I must not have chiselled
you must not have chiselled
she must not have chiselled
we must not have chiselled
you must not have chiselled
they must not have chiselled	I must not have been chiselling
you must not have been chiselling
she must not have been chiselling
we must not have been chiselling
you must not have been chiselling
they must not have been chiselling	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I chisel?
must you chisel?
must she chisel?
must we chisel?
must you chisel?
must they chisel? 	must I be chiselling?
must you be chiselling?
must she be chiselling?
must we be chiselling?
must you be chiselling?
must they be chiselling? 	must I have chiselled?
must you have chiselled?
must she have chiselled?
must we have chiselled?
must you have chiselled?
must they have chiselled? 	must I have been chiselling?
must you have been chiselling?
must she have been chiselling?
must we have been chiselling?
must you have been chiselling?
must they have been chiselling? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not chisel?
must you not chisel?
must she not chisel?
must we not chisel?
must you not chisel?
must they not chisel? 	must I not be chiselling?
must you not be chiselling?
must she not be chiselling?
must we not be chiselling?
must you not be chiselling?
must they not be chiselling? 	must I not have chiselled?
must you not have chiselled?
must she not have chiselled?
must we not have chiselled?
must you not have chiselled?
must they not have chiselled? 	must I not have been chiselling?
must you not have been chiselling?
must she not have been chiselling?
must we not have been chiselling?
must you not have been chiselling?
must they not have been chiselling?