must lisp
Verbo regular: lisp - lisped- lisped

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must lisp
you must lisp
she must lisp
we must lisp
you must lisp
they must lisp 	I must be lisping
you must be lisping
she must be lisping
we must be lisping
you must be lisping
they must be lisping	I must have lisped
you must have lisped
she must have lisped
we must have lisped
you must have lisped
they must have lisped	I must have been lisping
you must have been lisping
she must have been lisping
we must have been lisping
you must have been lisping
they must have been lisping	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not lisp
you must not lisp
she must not lisp
we must not lisp
you must not lisp
they must not lisp 	I must not be lisping
you must not be lisping
she must not be lisping
we must not be lisping
you must not be lisping
they must not be lisping	I must not have lisped
you must not have lisped
she must not have lisped
we must not have lisped
you must not have lisped
they must not have lisped	I must not have been lisping
you must not have been lisping
she must not have been lisping
we must not have been lisping
you must not have been lisping
they must not have been lisping	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I lisp?
must you lisp?
must she lisp?
must we lisp?
must you lisp?
must they lisp? 	must I be lisping?
must you be lisping?
must she be lisping?
must we be lisping?
must you be lisping?
must they be lisping? 	must I have lisped?
must you have lisped?
must she have lisped?
must we have lisped?
must you have lisped?
must they have lisped? 	must I have been lisping?
must you have been lisping?
must she have been lisping?
must we have been lisping?
must you have been lisping?
must they have been lisping? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not lisp?
must you not lisp?
must she not lisp?
must we not lisp?
must you not lisp?
must they not lisp? 	must I not be lisping?
must you not be lisping?
must she not be lisping?
must we not be lisping?
must you not be lisping?
must they not be lisping? 	must I not have lisped?
must you not have lisped?
must she not have lisped?
must we not have lisped?
must you not have lisped?
must they not have lisped? 	must I not have been lisping?
must you not have been lisping?
must she not have been lisping?
must we not have been lisping?
must you not have been lisping?
must they not have been lisping?