must pool
Verbo regular: pool - pooled- pooled

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must pool
you must pool
she must pool
we must pool
you must pool
they must pool 	I must be pooling
you must be pooling
she must be pooling
we must be pooling
you must be pooling
they must be pooling	I must have pooled
you must have pooled
she must have pooled
we must have pooled
you must have pooled
they must have pooled	I must have been pooling
you must have been pooling
she must have been pooling
we must have been pooling
you must have been pooling
they must have been pooling	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not pool
you must not pool
she must not pool
we must not pool
you must not pool
they must not pool 	I must not be pooling
you must not be pooling
she must not be pooling
we must not be pooling
you must not be pooling
they must not be pooling	I must not have pooled
you must not have pooled
she must not have pooled
we must not have pooled
you must not have pooled
they must not have pooled	I must not have been pooling
you must not have been pooling
she must not have been pooling
we must not have been pooling
you must not have been pooling
they must not have been pooling	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I pool?
must you pool?
must she pool?
must we pool?
must you pool?
must they pool? 	must I be pooling?
must you be pooling?
must she be pooling?
must we be pooling?
must you be pooling?
must they be pooling? 	must I have pooled?
must you have pooled?
must she have pooled?
must we have pooled?
must you have pooled?
must they have pooled? 	must I have been pooling?
must you have been pooling?
must she have been pooling?
must we have been pooling?
must you have been pooling?
must they have been pooling? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not pool?
must you not pool?
must she not pool?
must we not pool?
must you not pool?
must they not pool? 	must I not be pooling?
must you not be pooling?
must she not be pooling?
must we not be pooling?
must you not be pooling?
must they not be pooling? 	must I not have pooled?
must you not have pooled?
must she not have pooled?
must we not have pooled?
must you not have pooled?
must they not have pooled? 	must I not have been pooling?
must you not have been pooling?
must she not have been pooling?
must we not have been pooling?
must you not have been pooling?
must they not have been pooling?