should unclog
Regular verb: unclog - unclogged- unclogged

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should unclog
you should unclog
he should unclog
we should unclog
you should unclog
they should unclog 	I should be unclogging
you should be unclogging
he should be unclogging
we should be unclogging
you should be unclogging
they should be unclogging	I should have unclogged
you should have unclogged
he should have unclogged
we should have unclogged
you should have unclogged
they should have unclogged	I should have been unclogging
you should have been unclogging
he should have been unclogging
we should have been unclogging
you should have been unclogging
they should have been unclogging	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should not unclog
you should not unclog
he should not unclog
we should not unclog
you should not unclog
they should not unclog 	I should not be unclogging
you should not be unclogging
he should not be unclogging
we should not be unclogging
you should not be unclogging
they should not be unclogging	I should not have unclogged
you should not have unclogged
he should not have unclogged
we should not have unclogged
you should not have unclogged
they should not have unclogged	I should not have been unclogging
you should not have been unclogging
he should not have been unclogging
we should not have been unclogging
you should not have been unclogging
they should not have been unclogging	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I unclog?
should you unclog?
should he unclog?
should we unclog?
should you unclog?
should they unclog? 	should I be unclogging?
should you be unclogging?
should he be unclogging?
should we be unclogging?
should you be unclogging?
should they be unclogging? 	should I have unclogged?
should you have unclogged?
should he have unclogged?
should we have unclogged?
should you have unclogged?
should they have unclogged? 	should I have been unclogging?
should you have been unclogging?
should he have been unclogging?
should we have been unclogging?
should you have been unclogging?
should they have been unclogging? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I not unclog?
should you not unclog?
should he not unclog?
should we not unclog?
should you not unclog?
should they not unclog? 	should I not be unclogging?
should you not be unclogging?
should he not be unclogging?
should we not be unclogging?
should you not be unclogging?
should they not be unclogging? 	should I not have unclogged?
should you not have unclogged?
should he not have unclogged?
should we not have unclogged?
should you not have unclogged?
should they not have unclogged? 	should I not have been unclogging?
should you not have been unclogging?
should he not have been unclogging?
should we not have been unclogging?
should you not have been unclogging?
should they not have been unclogging?