should twin
Verbo regular: twin - twinned- twinned

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I should twin
you should twin
he should twin
we should twin
you should twin
they should twin 	I should be twinning
you should be twinning
he should be twinning
we should be twinning
you should be twinning
they should be twinning	I should have twinned
you should have twinned
he should have twinned
we should have twinned
you should have twinned
they should have twinned	I should have been twinning
you should have been twinning
he should have been twinning
we should have been twinning
you should have been twinning
they should have been twinning	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I should not twin
you should not twin
he should not twin
we should not twin
you should not twin
they should not twin 	I should not be twinning
you should not be twinning
he should not be twinning
we should not be twinning
you should not be twinning
they should not be twinning	I should not have twinned
you should not have twinned
he should not have twinned
we should not have twinned
you should not have twinned
they should not have twinned	I should not have been twinning
you should not have been twinning
he should not have been twinning
we should not have been twinning
you should not have been twinning
they should not have been twinning	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I twin?
should you twin?
should he twin?
should we twin?
should you twin?
should they twin? 	should I be twinning?
should you be twinning?
should he be twinning?
should we be twinning?
should you be twinning?
should they be twinning? 	should I have twinned?
should you have twinned?
should he have twinned?
should we have twinned?
should you have twinned?
should they have twinned? 	should I have been twinning?
should you have been twinning?
should he have been twinning?
should we have been twinning?
should you have been twinning?
should they have been twinning? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I not twin?
should you not twin?
should he not twin?
should we not twin?
should you not twin?
should they not twin? 	should I not be twinning?
should you not be twinning?
should he not be twinning?
should we not be twinning?
should you not be twinning?
should they not be twinning? 	should I not have twinned?
should you not have twinned?
should he not have twinned?
should we not have twinned?
should you not have twinned?
should they not have twinned? 	should I not have been twinning?
should you not have been twinning?
should he not have been twinning?
should we not have been twinning?
should you not have been twinning?
should they not have been twinning?