should thwack
Verbo regular: thwack - thwacked- thwacked

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I should thwack
you should thwack
she should thwack
we should thwack
you should thwack
they should thwack 	I should be thwacking
you should be thwacking
she should be thwacking
we should be thwacking
you should be thwacking
they should be thwacking	I should have thwacked
you should have thwacked
she should have thwacked
we should have thwacked
you should have thwacked
they should have thwacked	I should have been thwacking
you should have been thwacking
she should have been thwacking
we should have been thwacking
you should have been thwacking
they should have been thwacking	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I should not thwack
you should not thwack
she should not thwack
we should not thwack
you should not thwack
they should not thwack 	I should not be thwacking
you should not be thwacking
she should not be thwacking
we should not be thwacking
you should not be thwacking
they should not be thwacking	I should not have thwacked
you should not have thwacked
she should not have thwacked
we should not have thwacked
you should not have thwacked
they should not have thwacked	I should not have been thwacking
you should not have been thwacking
she should not have been thwacking
we should not have been thwacking
you should not have been thwacking
they should not have been thwacking	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I thwack?
should you thwack?
should she thwack?
should we thwack?
should you thwack?
should they thwack? 	should I be thwacking?
should you be thwacking?
should she be thwacking?
should we be thwacking?
should you be thwacking?
should they be thwacking? 	should I have thwacked?
should you have thwacked?
should she have thwacked?
should we have thwacked?
should you have thwacked?
should they have thwacked? 	should I have been thwacking?
should you have been thwacking?
should she have been thwacking?
should we have been thwacking?
should you have been thwacking?
should they have been thwacking? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I not thwack?
should you not thwack?
should she not thwack?
should we not thwack?
should you not thwack?
should they not thwack? 	should I not be thwacking?
should you not be thwacking?
should she not be thwacking?
should we not be thwacking?
should you not be thwacking?
should they not be thwacking? 	should I not have thwacked?
should you not have thwacked?
should she not have thwacked?
should we not have thwacked?
should you not have thwacked?
should they not have thwacked? 	should I not have been thwacking?
should you not have been thwacking?
should she not have been thwacking?
should we not have been thwacking?
should you not have been thwacking?
should they not have been thwacking?