should sour
Regular verb: sour - soured- soured

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should sour
you should sour
he should sour
we should sour
you should sour
they should sour 	I should be souring
you should be souring
he should be souring
we should be souring
you should be souring
they should be souring	I should have soured
you should have soured
he should have soured
we should have soured
you should have soured
they should have soured	I should have been souring
you should have been souring
he should have been souring
we should have been souring
you should have been souring
they should have been souring	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should not sour
you should not sour
he should not sour
we should not sour
you should not sour
they should not sour 	I should not be souring
you should not be souring
he should not be souring
we should not be souring
you should not be souring
they should not be souring	I should not have soured
you should not have soured
he should not have soured
we should not have soured
you should not have soured
they should not have soured	I should not have been souring
you should not have been souring
he should not have been souring
we should not have been souring
you should not have been souring
they should not have been souring	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I sour?
should you sour?
should he sour?
should we sour?
should you sour?
should they sour? 	should I be souring?
should you be souring?
should he be souring?
should we be souring?
should you be souring?
should they be souring? 	should I have soured?
should you have soured?
should he have soured?
should we have soured?
should you have soured?
should they have soured? 	should I have been souring?
should you have been souring?
should he have been souring?
should we have been souring?
should you have been souring?
should they have been souring? 	

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