ought to sour
Regular verb: sour - soured- soured

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to sour
you ought to sour
she ought to sour
we ought to sour
you ought to sour
they ought to sour 	I ought to be souring
you ought to be souring
she ought to be souring
we ought to be souring
you ought to be souring
they ought to be souring	I ought to have soured
you ought to have soured
she ought to have soured
we ought to have soured
you ought to have soured
they ought to have soured	I ought to have been souring
you ought to have been souring
she ought to have been souring
we ought to have been souring
you ought to have been souring
they ought to have been souring	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought not to sour
you ought not to sour
she ought not to sour
we ought not to sour
you ought not to sour
they ought not to sour 	I ought not to souring
you ought not to souring
she ought not to souring
we ought not to souring
you ought not to souring
they ought not to souring	I ought not to have soured
you ought not to have soured
she ought not to have soured
we ought not to have soured
you ought not to have soured
they ought not to have soured	I ought not to have been souring
you ought not to have been souring
she ought not to have been souring
we ought not to have been souring
you ought not to have been souring
they ought not to have been souring	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I sour?
ought to you sour?
ought to she sour?
ought to we sour?
ought to you sour?
ought to they sour? 	ought to I be souring?
ought to you be souring?
ought to she be souring?
ought to we be souring?
ought to you be souring?
ought to they be souring? 	ought to I have soured?
ought to you have soured?
ought to she have soured?
ought to we have soured?
ought to you have soured?
ought to they have soured? 	ought to I have been souring?
ought to you have been souring?
ought to she have been souring?
ought to we have been souring?
ought to you have been souring?
ought to they have been souring? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought I not to sour?
ought you not to sour?
ought she not to sour?
ought we not to sour?
ought you not to sour?
ought they not to sour? 	ought I not to be souring?
ought you not to be souring?
ought she not to be souring?
ought we not to be souring?
ought you not to be souring?
ought they not to be souring? 	ought I not to have soured?
ought you not to have soured?
ought she not to have soured?
ought we not to have soured?
ought you not to have soured?
ought they not to have soured? 	ought I not to have been souring?
ought you not to have been souring?
ought she not to have been souring?
ought we not to have been souring?
ought you not to have been souring?
ought they not to have been souring?