could prep
Verbo regular: prep - preped- preped

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could prep
you could prep
he could prep
we could prep
you could prep
they could prep 	I could be preping
you could be preping
he could be preping
we could be preping
you could be preping
they could be preping	I could have preped
you could have preped
he could have preped
we could have preped
you could have preped
they could have preped	I could have been preping
you could have been preping
he could have been preping
we could have been preping
you could have been preping
they could have been preping	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't prep
you couldn't prep
he couldn't prep
we couldn't prep
you couldn't prep
they couldn't prep 	I couldn't be preping
you couldn't be preping
he couldn't be preping
we couldn't be preping
you couldn't be preping
they couldn't be preping	I couldn't have preped
you couldn't have preped
he couldn't have preped
we couldn't have preped
you couldn't have preped
they couldn't have preped	I couldn't have been preping
you couldn't have been preping
he couldn't have been preping
we couldn't have been preping
you couldn't have been preping
they couldn't have been preping	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I prep?
could you prep?
could he prep?
could we prep?
could you prep?
could they prep? 	could I be preping?
could you be preping?
could he be preping?
could we be preping?
could you be preping?
could they be preping? 	could I have preped?
could you have preped?
could he have preped?
could we have preped?
could you have preped?
could they have preped? 	could I have been preping?
could you have been preping?
could he have been preping?
could we have been preping?
could you have been preping?
could they have been preping? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I prep?
couldn't you prep?
couldn't he prep?
couldn't we prep?
couldn't you prep?
couldn't they prep? 	couldn't I be preping?
couldn't you be preping?
couldn't he be preping?
couldn't we be preping?
couldn't you be preping?
couldn't they be preping? 	couldn't I have preped?
couldn't you have preped?
couldn't he have preped?
couldn't we have preped?
couldn't you have preped?
couldn't they have preped? 	couldn't I have been preping?
couldn't you have been preping?
couldn't he have been preping?
couldn't we have been preping?
couldn't you have been preping?
couldn't they have been preping?