English verb conjugation
COULD CROSS-POLLINATE

Regular verb: cross-pollinate - cross-pollinated - cross-pollinated

Affirmation

Simple form	V-ing form
I could cross-pollinate you could cross-pollinate he could cross-pollinate we could cross-pollinate you could cross-pollinate they could cross-pollinate	I could be cross-pollinating you could be cross-pollinating he could be cross-pollinating we could be cross-pollinating you could be cross-pollinating they could be cross-pollinating
Perfect	V-ing perfect
I could have cross-pollinated you could have cross-pollinated he could have cross-pollinated we could have cross-pollinated you could have cross-pollinated they could have cross-pollinated	I could have been cross-pollinating you could have been cross-pollinating he could have been cross-pollinating we could have been cross-pollinating you could have been cross-pollinating they could have been cross-pollinating

Negation

Simple form	V-ing form
I couldn't cross-pollinate you couldn't cross-pollinate he couldn't cross-pollinate we couldn't cross-pollinate you couldn't cross-pollinate they couldn't cross-pollinate	I couldn't be cross-pollinating you couldn't be cross-pollinating he couldn't be cross-pollinating we couldn't be cross-pollinating you couldn't be cross-pollinating they couldn't be cross-pollinating
Perfect	V-ing perfect
I couldn't have cross-pollinated you couldn't have cross-pollinated he couldn't have cross-pollinated we couldn't have cross-pollinated you couldn't have cross-pollinated they couldn't have cross-pollinated	I couldn't have been cross-pollinating you couldn't have been cross-pollinating he couldn't have been cross-pollinating we couldn't have been cross-pollinating you couldn't have been cross-pollinating they couldn't have been cross-pollinating

Interrogative form

Simple form	V-ing form
could I cross-pollinate? could you cross-pollinate? could he cross-pollinate? could we cross-pollinate? could you cross-pollinate? could they cross-pollinate?	could I be cross-pollinating? could you be cross-pollinating? could he be cross-pollinating? could we be cross-pollinating? could you be cross-pollinating? could they be cross-pollinating?
Perfect	V-ing perfect
could I have cross-pollinated? could you have cross-pollinated? could he have cross-pollinated? could we have cross-pollinated? could you have cross-pollinated? could they have cross-pollinated?	could I have been cross-pollinating? could you have been cross-pollinating? could he have been cross-pollinating? could we have been cross-pollinating? could you have been cross-pollinating? could they have been cross-pollinating?

Interro-negative form

Simple form	V-ing form
couldn't I cross-pollinate? couldn't you cross-pollinate? couldn't he cross-pollinate? couldn't we cross-pollinate? couldn't you cross-pollinate? couldn't they cross-pollinate?	couldn't I be cross-pollinating? couldn't you be cross-pollinating? couldn't he be cross-pollinating? couldn't we be cross-pollinating? couldn't you be cross-pollinating? couldn't they be cross-pollinating?
Perfect	V-ing perfect
couldn't I have cross-pollinated? couldn't you have cross-pollinated? couldn't he have cross-pollinated? couldn't we have cross-pollinated? couldn't you have cross-pollinated? couldn't they have cross-pollinated?	couldn't I have been cross-pollinating? couldn't you have been cross-pollinating? couldn't he have been cross-pollinating? couldn't we have been cross-pollinating? couldn't you have been cross-pollinating? couldn't they have been cross-pollinating?