should tat
Regular verb: tat - tatted- tatted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should tat
you should tat
she should tat
we should tat
you should tat
they should tat 	I should be tatting
you should be tatting
she should be tatting
we should be tatting
you should be tatting
they should be tatting	I should have tatted
you should have tatted
she should have tatted
we should have tatted
you should have tatted
they should have tatted	I should have been tatting
you should have been tatting
she should have been tatting
we should have been tatting
you should have been tatting
they should have been tatting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should not tat
you should not tat
she should not tat
we should not tat
you should not tat
they should not tat 	I should not be tatting
you should not be tatting
she should not be tatting
we should not be tatting
you should not be tatting
they should not be tatting	I should not have tatted
you should not have tatted
she should not have tatted
we should not have tatted
you should not have tatted
they should not have tatted	I should not have been tatting
you should not have been tatting
she should not have been tatting
we should not have been tatting
you should not have been tatting
they should not have been tatting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I tat?
should you tat?
should she tat?
should we tat?
should you tat?
should they tat? 	should I be tatting?
should you be tatting?
should she be tatting?
should we be tatting?
should you be tatting?
should they be tatting? 	should I have tatted?
should you have tatted?
should she have tatted?
should we have tatted?
should you have tatted?
should they have tatted? 	should I have been tatting?
should you have been tatting?
should she have been tatting?
should we have been tatting?
should you have been tatting?
should they have been tatting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I not tat?
should you not tat?
should she not tat?
should we not tat?
should you not tat?
should they not tat? 	should I not be tatting?
should you not be tatting?
should she not be tatting?
should we not be tatting?
should you not be tatting?
should they not be tatting? 	should I not have tatted?
should you not have tatted?
should she not have tatted?
should we not have tatted?
should you not have tatted?
should they not have tatted? 	should I not have been tatting?
should you not have been tatting?
should she not have been tatting?
should we not have been tatting?
should you not have been tatting?
should they not have been tatting?