must excrete
Verbo regular: excrete - excreted- excreted

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must excrete
you must excrete
he must excrete
we must excrete
you must excrete
they must excrete 	I must be excreting
you must be excreting
he must be excreting
we must be excreting
you must be excreting
they must be excreting	I must have excreted
you must have excreted
he must have excreted
we must have excreted
you must have excreted
they must have excreted	I must have been excreting
you must have been excreting
he must have been excreting
we must have been excreting
you must have been excreting
they must have been excreting	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not excrete
you must not excrete
he must not excrete
we must not excrete
you must not excrete
they must not excrete 	I must not be excreting
you must not be excreting
he must not be excreting
we must not be excreting
you must not be excreting
they must not be excreting	I must not have excreted
you must not have excreted
he must not have excreted
we must not have excreted
you must not have excreted
they must not have excreted	I must not have been excreting
you must not have been excreting
he must not have been excreting
we must not have been excreting
you must not have been excreting
they must not have been excreting	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I excrete?
must you excrete?
must he excrete?
must we excrete?
must you excrete?
must they excrete? 	must I be excreting?
must you be excreting?
must he be excreting?
must we be excreting?
must you be excreting?
must they be excreting? 	must I have excreted?
must you have excreted?
must he have excreted?
must we have excreted?
must you have excreted?
must they have excreted? 	must I have been excreting?
must you have been excreting?
must he have been excreting?
must we have been excreting?
must you have been excreting?
must they have been excreting? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not excrete?
must you not excrete?
must he not excrete?
must we not excrete?
must you not excrete?
must they not excrete? 	must I not be excreting?
must you not be excreting?
must he not be excreting?
must we not be excreting?
must you not be excreting?
must they not be excreting? 	must I not have excreted?
must you not have excreted?
must he not have excreted?
must we not have excreted?
must you not have excreted?
must they not have excreted? 	must I not have been excreting?
must you not have been excreting?
must he not have been excreting?
must we not have been excreting?
must you not have been excreting?
must they not have been excreting?