could proofread
Verbo irregular: proofread - proofread- proofread

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could proofread
you could proofread
she could proofread
we could proofread
you could proofread
they could proofread 	I could be proofreading
you could be proofreading
she could be proofreading
we could be proofreading
you could be proofreading
they could be proofreading	I could have proofread
you could have proofread
she could have proofread
we could have proofread
you could have proofread
they could have proofread	I could have been proofreading
you could have been proofreading
she could have been proofreading
we could have been proofreading
you could have been proofreading
they could have been proofreading	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not proofread
you could not proofread
she could not proofread
we could not proofread
you could not proofread
they could not proofread 	I could not be proofreading
you could not be proofreading
she could not be proofreading
we could not be proofreading
you could not be proofreading
they could not be proofreading	I could not have proofread
you could not have proofread
she could not have proofread
we could not have proofread
you could not have proofread
they could not have proofread	I could not have been proofreading
you could not have been proofreading
she could not have been proofreading
we could not have been proofreading
you could not have been proofreading
they could not have been proofreading	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I proofread?
could you proofread?
could she proofread?
could we proofread?
could you proofread?
could they proofread? 	could I be proofreading?
could you be proofreading?
could she be proofreading?
could we be proofreading?
could you be proofreading?
could they be proofreading? 	could I have proofread?
could you have proofread?
could she have proofread?
could we have proofread?
could you have proofread?
could they have proofread? 	could I have been proofreading?
could you have been proofreading?
could she have been proofreading?
could we have been proofreading?
could you have been proofreading?
could they have been proofreading? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not proofread?
could you not proofread?
could she not proofread?
could we not proofread?
could you not proofread?
could they not proofread? 	could I not be proofreading?
could you not be proofreading?
could she not be proofreading?
could we not be proofreading?
could you not be proofreading?
could they not be proofreading? 	could I not have proofread?
could you not have proofread?
could she not have proofread?
could we not have proofread?
could you not have proofread?
could they not have proofread? 	could I not have been proofreading?
could you not have been proofreading?
could she not have been proofreading?
could we not have been proofreading?
could you not have been proofreading?
could they not have been proofreading?