ought to shield
Regular verb: shield - shielded- shielded

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to shield
you ought to shield
she ought to shield
we ought to shield
you ought to shield
they ought to shield 	I ought to be shielding
you ought to be shielding
she ought to be shielding
we ought to be shielding
you ought to be shielding
they ought to be shielding	I ought to have shielded
you ought to have shielded
she ought to have shielded
we ought to have shielded
you ought to have shielded
they ought to have shielded	I ought to have been shielding
you ought to have been shielding
she ought to have been shielding
we ought to have been shielding
you ought to have been shielding
they ought to have been shielding	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought not to shield
you ought not to shield
she ought not to shield
we ought not to shield
you ought not to shield
they ought not to shield 	I ought not to shielding
you ought not to shielding
she ought not to shielding
we ought not to shielding
you ought not to shielding
they ought not to shielding	I ought not to have shielded
you ought not to have shielded
she ought not to have shielded
we ought not to have shielded
you ought not to have shielded
they ought not to have shielded	I ought not to have been shielding
you ought not to have been shielding
she ought not to have been shielding
we ought not to have been shielding
you ought not to have been shielding
they ought not to have been shielding	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I shield?
ought to you shield?
ought to she shield?
ought to we shield?
ought to you shield?
ought to they shield? 	ought to I be shielding?
ought to you be shielding?
ought to she be shielding?
ought to we be shielding?
ought to you be shielding?
ought to they be shielding? 	ought to I have shielded?
ought to you have shielded?
ought to she have shielded?
ought to we have shielded?
ought to you have shielded?
ought to they have shielded? 	ought to I have been shielding?
ought to you have been shielding?
ought to she have been shielding?
ought to we have been shielding?
ought to you have been shielding?
ought to they have been shielding? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought I not to shield?
ought you not to shield?
ought she not to shield?
ought we not to shield?
ought you not to shield?
ought they not to shield? 	ought I not to be shielding?
ought you not to be shielding?
ought she not to be shielding?
ought we not to be shielding?
ought you not to be shielding?
ought they not to be shielding? 	ought I not to have shielded?
ought you not to have shielded?
ought she not to have shielded?
ought we not to have shielded?
ought you not to have shielded?
ought they not to have shielded? 	ought I not to have been shielding?
ought you not to have been shielding?
ought she not to have been shielding?
ought we not to have been shielding?
ought you not to have been shielding?
ought they not to have been shielding?