shall dull
Regular verb: dull - dulled- dulled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shall dull
you shall dull
he shall dull
we shall dull
you shall dull
they shall dull 	I shall be dulling
you shall be dulling
he shall be dulling
we shall be dulling
you shall be dulling
they shall be dulling	I shall have dulled
you shall have dulled
he shall have dulled
we shall have dulled
you shall have dulled
they shall have dulled	I shall have been dulling
you shall have been dulling
he shall have been dulling
we shall have been dulling
you shall have been dulling
they shall have been dulling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shall not dull
you shall not dull
he shall not dull
we shall not dull
you shall not dull
they shall not dull 	I shall not be dulling
you shall not be dulling
he shall not be dulling
we shall not be dulling
you shall not be dulling
they shall not be dulling	I shall not have dulled
you shall not have dulled
he shall not have dulled
we shall not have dulled
you shall not have dulled
they shall not have dulled	I shall not have been dulling
you shall not have been dulling
he shall not have been dulling
we shall not have been dulling
you shall not have been dulling
they shall not have been dulling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shall I dull?
shall you dull?
shall he dull?
shall we dull?
shall you dull?
shall they dull? 	shall I be dulling?
shall you be dulling?
shall he be dulling?
shall we be dulling?
shall you be dulling?
shall they be dulling? 	shall I have dulled?
shall you have dulled?
shall he have dulled?
shall we have dulled?
shall you have dulled?
shall they have dulled? 	shall I have been dulling?
shall you have been dulling?
shall he have been dulling?
shall we have been dulling?
shall you have been dulling?
shall they have been dulling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shall I not dull?
shall you not dull?
shall he not dull?
shall we not dull?
shall you not dull?
shall they not dull? 	shall I not be dulling?
shall you not be dulling?
shall he not be dulling?
shall we not be dulling?
shall you not be dulling?
shall they not be dulling? 	shall I not have dulled?
shall you not have dulled?
shall he not have dulled?
shall we not have dulled?
shall you not have dulled?
shall they not have dulled? 	shall I not have been dulling?
shall you not have been dulling?
shall he not have been dulling?
shall we not have been dulling?
shall you not have been dulling?
shall they not have been dulling?