ought to spare
Regular verb: spare - spared- spared

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to spare
you ought to spare
he ought to spare
we ought to spare
you ought to spare
they ought to spare 	I ought to be sparing
you ought to be sparing
he ought to be sparing
we ought to be sparing
you ought to be sparing
they ought to be sparing	I ought to have spared
you ought to have spared
he ought to have spared
we ought to have spared
you ought to have spared
they ought to have spared	I ought to have been sparing
you ought to have been sparing
he ought to have been sparing
we ought to have been sparing
you ought to have been sparing
they ought to have been sparing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought not to spare
you ought not to spare
he ought not to spare
we ought not to spare
you ought not to spare
they ought not to spare 	I ought not to sparing
you ought not to sparing
he ought not to sparing
we ought not to sparing
you ought not to sparing
they ought not to sparing	I ought not to have spared
you ought not to have spared
he ought not to have spared
we ought not to have spared
you ought not to have spared
they ought not to have spared	I ought not to have been sparing
you ought not to have been sparing
he ought not to have been sparing
we ought not to have been sparing
you ought not to have been sparing
they ought not to have been sparing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I spare?
ought to you spare?
ought to he spare?
ought to we spare?
ought to you spare?
ought to they spare? 	ought to I be sparing?
ought to you be sparing?
ought to he be sparing?
ought to we be sparing?
ought to you be sparing?
ought to they be sparing? 	ought to I have spared?
ought to you have spared?
ought to he have spared?
ought to we have spared?
ought to you have spared?
ought to they have spared? 	ought to I have been sparing?
ought to you have been sparing?
ought to he have been sparing?
ought to we have been sparing?
ought to you have been sparing?
ought to they have been sparing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought I not to spare?
ought you not to spare?
ought he not to spare?
ought we not to spare?
ought you not to spare?
ought they not to spare? 	ought I not to be sparing?
ought you not to be sparing?
ought he not to be sparing?
ought we not to be sparing?
ought you not to be sparing?
ought they not to be sparing? 	ought I not to have spared?
ought you not to have spared?
ought he not to have spared?
ought we not to have spared?
ought you not to have spared?
ought they not to have spared? 	ought I not to have been sparing?
ought you not to have been sparing?
ought he not to have been sparing?
ought we not to have been sparing?
ought you not to have been sparing?
ought they not to have been sparing?