shall stem
Verbo regular: stem - stemmed- stemmed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I shall stem
you shall stem
he shall stem
we shall stem
you shall stem
they shall stem 	I shall be stemming
you shall be stemming
he shall be stemming
we shall be stemming
you shall be stemming
they shall be stemming	I shall have stemmed
you shall have stemmed
he shall have stemmed
we shall have stemmed
you shall have stemmed
they shall have stemmed	I shall have been stemming
you shall have been stemming
he shall have been stemming
we shall have been stemming
you shall have been stemming
they shall have been stemming	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I shall not stem
you shall not stem
he shall not stem
we shall not stem
you shall not stem
they shall not stem 	I shall not be stemming
you shall not be stemming
he shall not be stemming
we shall not be stemming
you shall not be stemming
they shall not be stemming	I shall not have stemmed
you shall not have stemmed
he shall not have stemmed
we shall not have stemmed
you shall not have stemmed
they shall not have stemmed	I shall not have been stemming
you shall not have been stemming
he shall not have been stemming
we shall not have been stemming
you shall not have been stemming
they shall not have been stemming	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
shall I stem?
shall you stem?
shall he stem?
shall we stem?
shall you stem?
shall they stem? 	shall I be stemming?
shall you be stemming?
shall he be stemming?
shall we be stemming?
shall you be stemming?
shall they be stemming? 	shall I have stemmed?
shall you have stemmed?
shall he have stemmed?
shall we have stemmed?
shall you have stemmed?
shall they have stemmed? 	shall I have been stemming?
shall you have been stemming?
shall he have been stemming?
shall we have been stemming?
shall you have been stemming?
shall they have been stemming? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
shall I not stem?
shall you not stem?
shall he not stem?
shall we not stem?
shall you not stem?
shall they not stem? 	shall I not be stemming?
shall you not be stemming?
shall he not be stemming?
shall we not be stemming?
shall you not be stemming?
shall they not be stemming? 	shall I not have stemmed?
shall you not have stemmed?
shall he not have stemmed?
shall we not have stemmed?
shall you not have stemmed?
shall they not have stemmed? 	shall I not have been stemming?
shall you not have been stemming?
shall he not have been stemming?
shall we not have been stemming?
shall you not have been stemming?
shall they not have been stemming?