English verb conjugation
COULD BIOASSAY

Regular verb: bioassay - bioassayed - bioassayed

Affirmation

Simple form	V-ing form
I could bioassay you could bioassay he could bioassay we could bioassay you could bioassay they could bioassay	I could be bioassaying you could be bioassaying he could be bioassaying we could be bioassaying you could be bioassaying they could be bioassaying
Perfect	V-ing perfect
I could have bioassayed you could have bioassayed he could have bioassayed we could have bioassayed you could have bioassayed they could have bioassayed	I could have been bioassaying you could have been bioassaying he could have been bioassaying we could have been bioassaying you could have been bioassaying they could have been bioassaying

Negation

Simple form	V-ing form
I couldn't bioassay you couldn't bioassay he couldn't bioassay we couldn't bioassay you couldn't bioassay they couldn't bioassay	I couldn't be bioassaying you couldn't be bioassaying he couldn't be bioassaying we couldn't be bioassaying you couldn't be bioassaying they couldn't be bioassaying
Perfect	V-ing perfect
I couldn't have bioassayed you couldn't have bioassayed he couldn't have bioassayed we couldn't have bioassayed you couldn't have bioassayed they couldn't have bioassayed	I couldn't have been bioassaying you couldn't have been bioassaying he couldn't have been bioassaying we couldn't have been bioassaying you couldn't have been bioassaying they couldn't have been bioassaying

Interrogative form

Simple form	V-ing form
could I bioassay? could you bioassay? could he bioassay? could we bioassay? could you bioassay? could they bioassay?	could I be bioassaying? could you be bioassaying? could he be bioassaying? could we be bioassaying? could you be bioassaying? could they be bioassaying?
Perfect	V-ing perfect
could I have bioassayed? could you have bioassayed? could he have bioassayed? could we have bioassayed? could you have bioassayed? could they have bioassayed?	could I have been bioassaying? could you have been bioassaying? could he have been bioassaying? could we have been bioassaying? could you have been bioassaying? could they have been bioassaying?

Interro-negative form

Simple form	V-ing form
couldn't I bioassay? couldn't you bioassay? couldn't he bioassay? couldn't we bioassay? couldn't you bioassay? couldn't they bioassay?	couldn't I be bioassaying? couldn't you be bioassaying? couldn't he be bioassaying? couldn't we be bioassaying? couldn't you be bioassaying? couldn't they be bioassaying?
Perfect	V-ing perfect
couldn't I have bioassayed? couldn't you have bioassayed? couldn't he have bioassayed? couldn't we have bioassayed? couldn't you have bioassayed? couldn't they have bioassayed?	couldn't I have been bioassaying? couldn't you have been bioassaying? couldn't he have been bioassaying? couldn't we have been bioassaying? couldn't you have been bioassaying? couldn't they have been bioassaying?