must acquire
Verbo regular: acquire - acquired- acquired

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must acquire
you must acquire
she must acquire
we must acquire
you must acquire
they must acquire 	I must be acquiring
you must be acquiring
she must be acquiring
we must be acquiring
you must be acquiring
they must be acquiring	I must have acquired
you must have acquired
she must have acquired
we must have acquired
you must have acquired
they must have acquired	I must have been acquiring
you must have been acquiring
she must have been acquiring
we must have been acquiring
you must have been acquiring
they must have been acquiring	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not acquire
you must not acquire
she must not acquire
we must not acquire
you must not acquire
they must not acquire 	I must not be acquiring
you must not be acquiring
she must not be acquiring
we must not be acquiring
you must not be acquiring
they must not be acquiring	I must not have acquired
you must not have acquired
she must not have acquired
we must not have acquired
you must not have acquired
they must not have acquired	I must not have been acquiring
you must not have been acquiring
she must not have been acquiring
we must not have been acquiring
you must not have been acquiring
they must not have been acquiring	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I acquire?
must you acquire?
must she acquire?
must we acquire?
must you acquire?
must they acquire? 	must I be acquiring?
must you be acquiring?
must she be acquiring?
must we be acquiring?
must you be acquiring?
must they be acquiring? 	must I have acquired?
must you have acquired?
must she have acquired?
must we have acquired?
must you have acquired?
must they have acquired? 	must I have been acquiring?
must you have been acquiring?
must she have been acquiring?
must we have been acquiring?
must you have been acquiring?
must they have been acquiring? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not acquire?
must you not acquire?
must she not acquire?
must we not acquire?
must you not acquire?
must they not acquire? 	must I not be acquiring?
must you not be acquiring?
must she not be acquiring?
must we not be acquiring?
must you not be acquiring?
must they not be acquiring? 	must I not have acquired?
must you not have acquired?
must she not have acquired?
must we not have acquired?
must you not have acquired?
must they not have acquired? 	must I not have been acquiring?
must you not have been acquiring?
must she not have been acquiring?
must we not have been acquiring?
must you not have been acquiring?
must they not have been acquiring?