should quad
Regular verb: quad - quaded- quaded

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should quad
you should quad
he should quad
we should quad
you should quad
they should quad 	I should be quading
you should be quading
he should be quading
we should be quading
you should be quading
they should be quading	I should have quaded
you should have quaded
he should have quaded
we should have quaded
you should have quaded
they should have quaded	I should have been quading
you should have been quading
he should have been quading
we should have been quading
you should have been quading
they should have been quading	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should not quad
you should not quad
he should not quad
we should not quad
you should not quad
they should not quad 	I should not be quading
you should not be quading
he should not be quading
we should not be quading
you should not be quading
they should not be quading	I should not have quaded
you should not have quaded
he should not have quaded
we should not have quaded
you should not have quaded
they should not have quaded	I should not have been quading
you should not have been quading
he should not have been quading
we should not have been quading
you should not have been quading
they should not have been quading	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I quad?
should you quad?
should he quad?
should we quad?
should you quad?
should they quad? 	should I be quading?
should you be quading?
should he be quading?
should we be quading?
should you be quading?
should they be quading? 	should I have quaded?
should you have quaded?
should he have quaded?
should we have quaded?
should you have quaded?
should they have quaded? 	should I have been quading?
should you have been quading?
should he have been quading?
should we have been quading?
should you have been quading?
should they have been quading? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I not quad?
should you not quad?
should he not quad?
should we not quad?
should you not quad?
should they not quad? 	should I not be quading?
should you not be quading?
should he not be quading?
should we not be quading?
should you not be quading?
should they not be quading? 	should I not have quaded?
should you not have quaded?
should he not have quaded?
should we not have quaded?
should you not have quaded?
should they not have quaded? 	should I not have been quading?
should you not have been quading?
should he not have been quading?
should we not have been quading?
should you not have been quading?
should they not have been quading?