Conjugación del verbo inglés
COULD PROOFREAD

Verbo irregular: proofread - proofread - proofread

Afirmación

Forma simple	Forma con V-ing
I could proofread you could proofread he could proofread we could proofread you could proofread they could proofread	I could be proofreading you could be proofreading he could be proofreading we could be proofreading you could be proofreading they could be proofreading
Perfecto	Perfecto con V-ing
I could have proofread you could have proofread he 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 he 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
I couldn't proofread you couldn't proofread he couldn't proofread we couldn't proofread you couldn't proofread they couldn't proofread	I couldn't be proofreading you couldn't be proofreading he couldn't be proofreading we couldn't be proofreading you couldn't be proofreading they couldn't be proofreading
Perfecto	Perfecto con V-ing
I couldn't have proofread you couldn't have proofread he couldn't have proofread we couldn't have proofread you couldn't have proofread they couldn't have proofread	I couldn't have been proofreading you couldn't have been proofreading he couldn't have been proofreading we couldn't have been proofreading you couldn't have been proofreading they couldn't have been proofreading

Forma interrogativa

Forma simple	Forma con V-ing
could I proofread? could you proofread? could he proofread? could we proofread? could you proofread? could they proofread?	could I be proofreading? could you be proofreading? could he be proofreading? could we be proofreading? could you be proofreading? could they be proofreading?
Perfecto	Perfecto con V-ing
could I have proofread? could you have proofread? could he 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 he 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
couldn't I proofread? couldn't you proofread? couldn't he proofread? couldn't we proofread? couldn't you proofread? couldn't they proofread?	couldn't I be proofreading? couldn't you be proofreading? couldn't he be proofreading? couldn't we be proofreading? couldn't you be proofreading? couldn't they be proofreading?
Perfecto	Perfecto con V-ing
couldn't I have proofread? couldn't you have proofread? couldn't he have proofread? couldn't we have proofread? couldn't you have proofread? couldn't they have proofread?	couldn't I have been proofreading? couldn't you have been proofreading? couldn't he have been proofreading? couldn't we have been proofreading? couldn't you have been proofreading? couldn't they have been proofreading?