should shirk
Regular verb: shirk - shirked- shirked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should shirk
you should shirk
he should shirk
we should shirk
you should shirk
they should shirk 	I should be shirking
you should be shirking
he should be shirking
we should be shirking
you should be shirking
they should be shirking	I should have shirked
you should have shirked
he should have shirked
we should have shirked
you should have shirked
they should have shirked	I should have been shirking
you should have been shirking
he should have been shirking
we should have been shirking
you should have been shirking
they should have been shirking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should not shirk
you should not shirk
he should not shirk
we should not shirk
you should not shirk
they should not shirk 	I should not be shirking
you should not be shirking
he should not be shirking
we should not be shirking
you should not be shirking
they should not be shirking	I should not have shirked
you should not have shirked
he should not have shirked
we should not have shirked
you should not have shirked
they should not have shirked	I should not have been shirking
you should not have been shirking
he should not have been shirking
we should not have been shirking
you should not have been shirking
they should not have been shirking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I shirk?
should you shirk?
should he shirk?
should we shirk?
should you shirk?
should they shirk? 	should I be shirking?
should you be shirking?
should he be shirking?
should we be shirking?
should you be shirking?
should they be shirking? 	should I have shirked?
should you have shirked?
should he have shirked?
should we have shirked?
should you have shirked?
should they have shirked? 	should I have been shirking?
should you have been shirking?
should he have been shirking?
should we have been shirking?
should you have been shirking?
should they have been shirking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I not shirk?
should you not shirk?
should he not shirk?
should we not shirk?
should you not shirk?
should they not shirk? 	should I not be shirking?
should you not be shirking?
should he not be shirking?
should we not be shirking?
should you not be shirking?
should they not be shirking? 	should I not have shirked?
should you not have shirked?
should he not have shirked?
should we not have shirked?
should you not have shirked?
should they not have shirked? 	should I not have been shirking?
should you not have been shirking?
should he not have been shirking?
should we not have been shirking?
should you not have been shirking?
should they not have been shirking?