English verb conjugation
COULD HYBRIDISE

Regular verb: hybridise - hybridised - hybridised

Affirmation

Simple form	V-ing form
I could hybridise you could hybridise he could hybridise we could hybridise you could hybridise they could hybridise	I could be hybridising you could be hybridising he could be hybridising we could be hybridising you could be hybridising they could be hybridising
Perfect	V-ing perfect
I could have hybridised you could have hybridised he could have hybridised we could have hybridised you could have hybridised they could have hybridised	I could have been hybridising you could have been hybridising he could have been hybridising we could have been hybridising you could have been hybridising they could have been hybridising

Negation

Simple form	V-ing form
I couldn't hybridise you couldn't hybridise he couldn't hybridise we couldn't hybridise you couldn't hybridise they couldn't hybridise	I couldn't be hybridising you couldn't be hybridising he couldn't be hybridising we couldn't be hybridising you couldn't be hybridising they couldn't be hybridising
Perfect	V-ing perfect
I couldn't have hybridised you couldn't have hybridised he couldn't have hybridised we couldn't have hybridised you couldn't have hybridised they couldn't have hybridised	I couldn't have been hybridising you couldn't have been hybridising he couldn't have been hybridising we couldn't have been hybridising you couldn't have been hybridising they couldn't have been hybridising

Interrogative form

Simple form	V-ing form
could I hybridise? could you hybridise? could he hybridise? could we hybridise? could you hybridise? could they hybridise?	could I be hybridising? could you be hybridising? could he be hybridising? could we be hybridising? could you be hybridising? could they be hybridising?
Perfect	V-ing perfect
could I have hybridised? could you have hybridised? could he have hybridised? could we have hybridised? could you have hybridised? could they have hybridised?	could I have been hybridising? could you have been hybridising? could he have been hybridising? could we have been hybridising? could you have been hybridising? could they have been hybridising?

Interro-negative form

Simple form	V-ing form
couldn't I hybridise? couldn't you hybridise? couldn't he hybridise? couldn't we hybridise? couldn't you hybridise? couldn't they hybridise?	couldn't I be hybridising? couldn't you be hybridising? couldn't he be hybridising? couldn't we be hybridising? couldn't you be hybridising? couldn't they be hybridising?
Perfect	V-ing perfect
couldn't I have hybridised? couldn't you have hybridised? couldn't he have hybridised? couldn't we have hybridised? couldn't you have hybridised? couldn't they have hybridised?	couldn't I have been hybridising? couldn't you have been hybridising? couldn't he have been hybridising? couldn't we have been hybridising? couldn't you have been hybridising? couldn't they have been hybridising?