English verb conjugation
COULD DEOXIDISE

Regular verb: deoxidise - deoxidised - deoxidised

Affirmation

Simple form	V-ing form
I could deoxidise you could deoxidise she could deoxidise we could deoxidise you could deoxidise they could deoxidise	I could be deoxidising you could be deoxidising she 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 she 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 she 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 couldn't deoxidise you couldn't deoxidise she couldn't deoxidise we couldn't deoxidise you couldn't deoxidise they couldn't deoxidise	I couldn't be deoxidising you couldn't be deoxidising she couldn't be deoxidising we couldn't be deoxidising you couldn't be deoxidising they couldn't be deoxidising
Perfect	V-ing perfect
I couldn't have deoxidised you couldn't have deoxidised she couldn't have deoxidised we couldn't have deoxidised you couldn't have deoxidised they couldn't have deoxidised	I couldn't have been deoxidising you couldn't have been deoxidising she couldn't have been deoxidising we couldn't have been deoxidising you couldn't have been deoxidising they couldn't have been deoxidising

Interrogative form

Simple form	V-ing form
could I deoxidise? could you deoxidise? could she deoxidise? could we deoxidise? could you deoxidise? could they deoxidise?	could I be deoxidising? could you be deoxidising? could she 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 she 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 she 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
couldn't I deoxidise? couldn't you deoxidise? couldn't she deoxidise? couldn't we deoxidise? couldn't you deoxidise? couldn't they deoxidise?	couldn't I be deoxidising? couldn't you be deoxidising? couldn't she be deoxidising? couldn't we be deoxidising? couldn't you be deoxidising? couldn't they be deoxidising?
Perfect	V-ing perfect
couldn't I have deoxidised? couldn't you have deoxidised? couldn't she have deoxidised? couldn't we have deoxidised? couldn't you have deoxidised? couldn't they have deoxidised?	couldn't I have been deoxidising? couldn't you have been deoxidising? couldn't she have been deoxidising? couldn't we have been deoxidising? couldn't you have been deoxidising? couldn't they have been deoxidising?