must think
Verbo irregular: think - thought- thought

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must think
you must think
he must think
we must think
you must think
they must think 	I must be thinking
you must be thinking
he must be thinking
we must be thinking
you must be thinking
they must be thinking	I must have thought
you must have thought
he must have thought
we must have thought
you must have thought
they must have thought	I must have been thinking
you must have been thinking
he must have been thinking
we must have been thinking
you must have been thinking
they must have been thinking	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not think
you must not think
he must not think
we must not think
you must not think
they must not think 	I must not be thinking
you must not be thinking
he must not be thinking
we must not be thinking
you must not be thinking
they must not be thinking	I must not have thought
you must not have thought
he must not have thought
we must not have thought
you must not have thought
they must not have thought	I must not have been thinking
you must not have been thinking
he must not have been thinking
we must not have been thinking
you must not have been thinking
they must not have been thinking	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I think?
must you think?
must he think?
must we think?
must you think?
must they think? 	must I be thinking?
must you be thinking?
must he be thinking?
must we be thinking?
must you be thinking?
must they be thinking? 	must I have thought?
must you have thought?
must he have thought?
must we have thought?
must you have thought?
must they have thought? 	must I have been thinking?
must you have been thinking?
must he have been thinking?
must we have been thinking?
must you have been thinking?
must they have been thinking? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not think?
must you not think?
must he not think?
must we not think?
must you not think?
must they not think? 	must I not be thinking?
must you not be thinking?
must he not be thinking?
must we not be thinking?
must you not be thinking?
must they not be thinking? 	must I not have thought?
must you not have thought?
must he not have thought?
must we not have thought?
must you not have thought?
must they not have thought? 	must I not have been thinking?
must you not have been thinking?
must he not have been thinking?
must we not have been thinking?
must you not have been thinking?
must they not have been thinking?