should ski
Verbo regular: ski - skied- skied

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I'd ski
you'd ski
she'd ski
we'd ski
you'd ski
they'd ski 	I'd be skiing
you'd be skiing
she'd be skiing
we'd be skiing
you'd be skiing
they'd be skiing	I should've skied
you should've skied
she should've skied
we should've skied
you should've skied
they should've skied	I should've been skiing
you should've been skiing
she should've been skiing
we should've been skiing
you should've been skiing
they should've been skiing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I shouldn't ski
you shouldn't ski
she shouldn't ski
we shouldn't ski
you shouldn't ski
they shouldn't ski 	I shouldn't be skiing
you shouldn't be skiing
she shouldn't be skiing
we shouldn't be skiing
you shouldn't be skiing
they shouldn't be skiing	I shouldn't have skied
you shouldn't have skied
she shouldn't have skied
we shouldn't have skied
you shouldn't have skied
they shouldn't have skied	I shouldn't have been skiing
you shouldn't have been skiing
she shouldn't have been skiing
we shouldn't have been skiing
you shouldn't have been skiing
they shouldn't have been skiing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I ski?
should you ski?
should she ski?
should we ski?
should you ski?
should they ski? 	should I be skiing?
should you be skiing?
should she be skiing?
should we be skiing?
should you be skiing?
should they be skiing? 	should I have skied?
should you have skied?
should she have skied?
should we have skied?
should you have skied?
should they have skied? 	should I have been skiing?
should you have been skiing?
should she have been skiing?
should we have been skiing?
should you have been skiing?
should they have been skiing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
shouldn't I ski?
shouldn't you ski?
shouldn't she ski?
shouldn't we ski?
shouldn't you ski?
shouldn't they ski? 	shouldn't I be skiing?
shouldn't you be skiing?
shouldn't she be skiing?
shouldn't we be skiing?
shouldn't you be skiing?
shouldn't they be skiing? 	shouldn't I have skied?
shouldn't you have skied?
shouldn't she have skied?
shouldn't we have skied?
shouldn't you have skied?
shouldn't they have skied? 	shouldn't I have been skiing?
shouldn't you have been skiing?
shouldn't she have been skiing?
shouldn't we have been skiing?
shouldn't you have been skiing?
shouldn't they have been skiing?