English verb conjugation
COULD DEOXIDISE

Regular verb: deoxidise - deoxidised - deoxidised

Affirmation

Simple form	V-ing form
I could deoxidise you could deoxidise he could deoxidise we could deoxidise you could deoxidise they could deoxidise	I could be deoxidising you could be deoxidising he could be deoxidising we could be deoxidising you could be deoxidising they could be deoxidising
Perfect	V-ing perfect
I could have deoxidised you could have deoxidised he could have deoxidised we could have deoxidised you could have deoxidised they could have deoxidised	I could have been deoxidising you could have been deoxidising he could have been deoxidising we could have been deoxidising you could have been deoxidising they could have been deoxidising

Negation

Simple form	V-ing form
I could not deoxidise you could not deoxidise he could not deoxidise we could not deoxidise you could not deoxidise they could not deoxidise	I could not be deoxidising you could not be deoxidising he could not be deoxidising we could not be deoxidising you could not be deoxidising they could not be deoxidising
Perfect	V-ing perfect
I could not have deoxidised you could not have deoxidised he could not have deoxidised we could not have deoxidised you could not have deoxidised they could not have deoxidised	I could not have been deoxidising you could not have been deoxidising he could not have been deoxidising we could not have been deoxidising you could not have been deoxidising they could not have been deoxidising

Interrogative form

Simple form	V-ing form
could I deoxidise? could you deoxidise? could he deoxidise? could we deoxidise? could you deoxidise? could they deoxidise?	could I be deoxidising? could you be deoxidising? could he be deoxidising? could we be deoxidising? could you be deoxidising? could they be deoxidising?
Perfect	V-ing perfect
could I have deoxidised? could you have deoxidised? could he have deoxidised? could we have deoxidised? could you have deoxidised? could they have deoxidised?	could I have been deoxidising? could you have been deoxidising? could he have been deoxidising? could we have been deoxidising? could you have been deoxidising? could they have been deoxidising?

Interro-negative form

Simple form	V-ing form
could I not deoxidise? could you not deoxidise? could he not deoxidise? could we not deoxidise? could you not deoxidise? could they not deoxidise?	could I not be deoxidising? could you not be deoxidising? could he not be deoxidising? could we not be deoxidising? could you not be deoxidising? could they not be deoxidising?
Perfect	V-ing perfect
could I not have deoxidised? could you not have deoxidised? could he not have deoxidised? could we not have deoxidised? could you not have deoxidised? could they not have deoxidised?	could I not have been deoxidising? could you not have been deoxidising? could he not have been deoxidising? could we not have been deoxidising? could you not have been deoxidising? could they not have been deoxidising?