shall double-check
Regular verb: double-check - double-checked- double-checked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shall double-check
you shall double-check
he shall double-check
we shall double-check
you shall double-check
they shall double-check 	I shall be double-checking
you shall be double-checking
he shall be double-checking
we shall be double-checking
you shall be double-checking
they shall be double-checking	I shall have double-checked
you shall have double-checked
he shall have double-checked
we shall have double-checked
you shall have double-checked
they shall have double-checked	I shall have been double-checking
you shall have been double-checking
he shall have been double-checking
we shall have been double-checking
you shall have been double-checking
they shall have been double-checking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shall not double-check
you shall not double-check
he shall not double-check
we shall not double-check
you shall not double-check
they shall not double-check 	I shall not be double-checking
you shall not be double-checking
he shall not be double-checking
we shall not be double-checking
you shall not be double-checking
they shall not be double-checking	I shall not have double-checked
you shall not have double-checked
he shall not have double-checked
we shall not have double-checked
you shall not have double-checked
they shall not have double-checked	I shall not have been double-checking
you shall not have been double-checking
he shall not have been double-checking
we shall not have been double-checking
you shall not have been double-checking
they shall not have been double-checking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shall I double-check?
shall you double-check?
shall he double-check?
shall we double-check?
shall you double-check?
shall they double-check? 	shall I be double-checking?
shall you be double-checking?
shall he be double-checking?
shall we be double-checking?
shall you be double-checking?
shall they be double-checking? 	shall I have double-checked?
shall you have double-checked?
shall he have double-checked?
shall we have double-checked?
shall you have double-checked?
shall they have double-checked? 	shall I have been double-checking?
shall you have been double-checking?
shall he have been double-checking?
shall we have been double-checking?
shall you have been double-checking?
shall they have been double-checking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shall I not double-check?
shall you not double-check?
shall he not double-check?
shall we not double-check?
shall you not double-check?
shall they not double-check? 	shall I not be double-checking?
shall you not be double-checking?
shall he not be double-checking?
shall we not be double-checking?
shall you not be double-checking?
shall they not be double-checking? 	shall I not have double-checked?
shall you not have double-checked?
shall he not have double-checked?
shall we not have double-checked?
shall you not have double-checked?
shall they not have double-checked? 	shall I not have been double-checking?
shall you not have been double-checking?
shall he not have been double-checking?
shall we not have been double-checking?
shall you not have been double-checking?
shall they not have been double-checking?