should specialize
Regular verb: specialize - specialized- specialized

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should specialize
you should specialize
he should specialize
we should specialize
you should specialize
they should specialize 	I should be specializing
you should be specializing
he should be specializing
we should be specializing
you should be specializing
they should be specializing	I should have specialized
you should have specialized
he should have specialized
we should have specialized
you should have specialized
they should have specialized	I should have been specializing
you should have been specializing
he should have been specializing
we should have been specializing
you should have been specializing
they should have been specializing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should not specialize
you should not specialize
he should not specialize
we should not specialize
you should not specialize
they should not specialize 	I should not be specializing
you should not be specializing
he should not be specializing
we should not be specializing
you should not be specializing
they should not be specializing	I should not have specialized
you should not have specialized
he should not have specialized
we should not have specialized
you should not have specialized
they should not have specialized	I should not have been specializing
you should not have been specializing
he should not have been specializing
we should not have been specializing
you should not have been specializing
they should not have been specializing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I specialize?
should you specialize?
should he specialize?
should we specialize?
should you specialize?
should they specialize? 	should I be specializing?
should you be specializing?
should he be specializing?
should we be specializing?
should you be specializing?
should they be specializing? 	should I have specialized?
should you have specialized?
should he have specialized?
should we have specialized?
should you have specialized?
should they have specialized? 	should I have been specializing?
should you have been specializing?
should he have been specializing?
should we have been specializing?
should you have been specializing?
should they have been specializing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I not specialize?
should you not specialize?
should he not specialize?
should we not specialize?
should you not specialize?
should they not specialize? 	should I not be specializing?
should you not be specializing?
should he not be specializing?
should we not be specializing?
should you not be specializing?
should they not be specializing? 	should I not have specialized?
should you not have specialized?
should he not have specialized?
should we not have specialized?
should you not have specialized?
should they not have specialized? 	should I not have been specializing?
should you not have been specializing?
should he not have been specializing?
should we not have been specializing?
should you not have been specializing?
should they not have been specializing?