should duck
Verbo regular: duck - ducked- ducked

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I should duck
you should duck
she should duck
we should duck
you should duck
they should duck 	I should be ducking
you should be ducking
she should be ducking
we should be ducking
you should be ducking
they should be ducking	I should have ducked
you should have ducked
she should have ducked
we should have ducked
you should have ducked
they should have ducked	I should have been ducking
you should have been ducking
she should have been ducking
we should have been ducking
you should have been ducking
they should have been ducking	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I should not duck
you should not duck
she should not duck
we should not duck
you should not duck
they should not duck 	I should not be ducking
you should not be ducking
she should not be ducking
we should not be ducking
you should not be ducking
they should not be ducking	I should not have ducked
you should not have ducked
she should not have ducked
we should not have ducked
you should not have ducked
they should not have ducked	I should not have been ducking
you should not have been ducking
she should not have been ducking
we should not have been ducking
you should not have been ducking
they should not have been ducking	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I duck?
should you duck?
should she duck?
should we duck?
should you duck?
should they duck? 	should I be ducking?
should you be ducking?
should she be ducking?
should we be ducking?
should you be ducking?
should they be ducking? 	should I have ducked?
should you have ducked?
should she have ducked?
should we have ducked?
should you have ducked?
should they have ducked? 	should I have been ducking?
should you have been ducking?
should she have been ducking?
should we have been ducking?
should you have been ducking?
should they have been ducking? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I not duck?
should you not duck?
should she not duck?
should we not duck?
should you not duck?
should they not duck? 	should I not be ducking?
should you not be ducking?
should she not be ducking?
should we not be ducking?
should you not be ducking?
should they not be ducking? 	should I not have ducked?
should you not have ducked?
should she not have ducked?
should we not have ducked?
should you not have ducked?
should they not have ducked? 	should I not have been ducking?
should you not have been ducking?
should she not have been ducking?
should we not have been ducking?
should you not have been ducking?
should they not have been ducking?