must undercount
Verbo regular: undercount - undercounted- undercounted

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must undercount
you must undercount
he must undercount
we must undercount
you must undercount
they must undercount 	I must be undercounting
you must be undercounting
he must be undercounting
we must be undercounting
you must be undercounting
they must be undercounting	I must have undercounted
you must have undercounted
he must have undercounted
we must have undercounted
you must have undercounted
they must have undercounted	I must have been undercounting
you must have been undercounting
he must have been undercounting
we must have been undercounting
you must have been undercounting
they must have been undercounting	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not undercount
you must not undercount
he must not undercount
we must not undercount
you must not undercount
they must not undercount 	I must not be undercounting
you must not be undercounting
he must not be undercounting
we must not be undercounting
you must not be undercounting
they must not be undercounting	I must not have undercounted
you must not have undercounted
he must not have undercounted
we must not have undercounted
you must not have undercounted
they must not have undercounted	I must not have been undercounting
you must not have been undercounting
he must not have been undercounting
we must not have been undercounting
you must not have been undercounting
they must not have been undercounting	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I undercount?
must you undercount?
must he undercount?
must we undercount?
must you undercount?
must they undercount? 	must I be undercounting?
must you be undercounting?
must he be undercounting?
must we be undercounting?
must you be undercounting?
must they be undercounting? 	must I have undercounted?
must you have undercounted?
must he have undercounted?
must we have undercounted?
must you have undercounted?
must they have undercounted? 	must I have been undercounting?
must you have been undercounting?
must he have been undercounting?
must we have been undercounting?
must you have been undercounting?
must they have been undercounting? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not undercount?
must you not undercount?
must he not undercount?
must we not undercount?
must you not undercount?
must they not undercount? 	must I not be undercounting?
must you not be undercounting?
must he not be undercounting?
must we not be undercounting?
must you not be undercounting?
must they not be undercounting? 	must I not have undercounted?
must you not have undercounted?
must he not have undercounted?
must we not have undercounted?
must you not have undercounted?
must they not have undercounted? 	must I not have been undercounting?
must you not have been undercounting?
must he not have been undercounting?
must we not have been undercounting?
must you not have been undercounting?
must they not have been undercounting?