Conjugação do verbo inglês
COULD CALIBRATE

Verbo regular: calibrate - calibrated - calibrated

Afirmação

Forma simple	Forma com V-ing
I could calibrate you could calibrate he could calibrate we could calibrate you could calibrate they could calibrate	I could be calibrating you could be calibrating he could be calibrating we could be calibrating you could be calibrating they could be calibrating
Perfeito	Perfeito com V-ing
I could have calibrated you could have calibrated he could have calibrated we could have calibrated you could have calibrated they could have calibrated	I could have been calibrating you could have been calibrating he could have been calibrating we could have been calibrating you could have been calibrating they could have been calibrating

Negação

Forma simple	Forma com V-ing
I couldn't calibrate you couldn't calibrate he couldn't calibrate we couldn't calibrate you couldn't calibrate they couldn't calibrate	I couldn't be calibrating you couldn't be calibrating he couldn't be calibrating we couldn't be calibrating you couldn't be calibrating they couldn't be calibrating
Perfeito	Perfeito com V-ing
I couldn't have calibrated you couldn't have calibrated he couldn't have calibrated we couldn't have calibrated you couldn't have calibrated they couldn't have calibrated	I couldn't have been calibrating you couldn't have been calibrating he couldn't have been calibrating we couldn't have been calibrating you couldn't have been calibrating they couldn't have been calibrating

Forma interrogativa

Forma simple	Forma com V-ing
could I calibrate? could you calibrate? could he calibrate? could we calibrate? could you calibrate? could they calibrate?	could I be calibrating? could you be calibrating? could he be calibrating? could we be calibrating? could you be calibrating? could they be calibrating?
Perfeito	Perfeito com V-ing
could I have calibrated? could you have calibrated? could he have calibrated? could we have calibrated? could you have calibrated? could they have calibrated?	could I have been calibrating? could you have been calibrating? could he have been calibrating? could we have been calibrating? could you have been calibrating? could they have been calibrating?

Forma interro-Negação

Forma simple	Forma com V-ing
couldn't I calibrate? couldn't you calibrate? couldn't he calibrate? couldn't we calibrate? couldn't you calibrate? couldn't they calibrate?	couldn't I be calibrating? couldn't you be calibrating? couldn't he be calibrating? couldn't we be calibrating? couldn't you be calibrating? couldn't they be calibrating?
Perfeito	Perfeito com V-ing
couldn't I have calibrated? couldn't you have calibrated? couldn't he have calibrated? couldn't we have calibrated? couldn't you have calibrated? couldn't they have calibrated?	couldn't I have been calibrating? couldn't you have been calibrating? couldn't he have been calibrating? couldn't we have been calibrating? couldn't you have been calibrating? couldn't they have been calibrating?