can prep
Verbo regular: prep - preped- preped

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can prep
you can prep
he can prep
we can prep
you can prep
they can prep 	I can be preping
you can be preping
he can be preping
we can be preping
you can be preping
they can be preping	I can have preped
you can have preped
he can have preped
we can have preped
you can have preped
they can have preped	I can have been preping
you can have been preping
he can have been preping
we can have been preping
you can have been preping
they can have been preping	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I cannot prep
you cannot prep
he cannot prep
we cannot prep
you cannot prep
they cannot prep 	I cannot be preping
you cannot be preping
he cannot be preping
we cannot be preping
you cannot be preping
they cannot be preping	I cannot have preped
you cannot have preped
he cannot have preped
we cannot have preped
you cannot have preped
they cannot have preped	I cannot have been preping
you cannot have been preping
he cannot have been preping
we cannot have been preping
you cannot have been preping
they cannot have been preping	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I prep?
can you prep?
can he prep?
can we prep?
can you prep?
can they prep? 	can I be preping?
can you be preping?
can he be preping?
can we be preping?
can you be preping?
can they be preping? 	can I have preped?
can you have preped?
can he have preped?
can we have preped?
can you have preped?
can they have preped? 	can I have been preping?
can you have been preping?
can he have been preping?
can we have been preping?
can you have been preping?
can they have been preping? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I not prep?
can you not prep?
can he not prep?
can we not prep?
can you not prep?
can they not prep? 	can I not be preping?
can you not be preping?
can he not be preping?
can we not be preping?
can you not be preping?
can they not be preping? 	can I not have preped?
can you not have preped?
can he not have preped?
can we not have preped?
can you not have preped?
can they not have preped? 	can I not have been preping?
can you not have been preping?
can he not have been preping?
can we not have been preping?
can you not have been preping?
can they not have been preping?