English verb conjugation
COULD BIFURCATE

Regular verb: bifurcate - bifurcated - bifurcated

Affirmation

Simple form	V-ing form
I could bifurcate you could bifurcate he could bifurcate we could bifurcate you could bifurcate they could bifurcate	I could be bifurcating you could be bifurcating he could be bifurcating we could be bifurcating you could be bifurcating they could be bifurcating
Perfect	V-ing perfect
I could have bifurcated you could have bifurcated he could have bifurcated we could have bifurcated you could have bifurcated they could have bifurcated	I could have been bifurcating you could have been bifurcating he could have been bifurcating we could have been bifurcating you could have been bifurcating they could have been bifurcating

Negation

Simple form	V-ing form
I couldn't bifurcate you couldn't bifurcate he couldn't bifurcate we couldn't bifurcate you couldn't bifurcate they couldn't bifurcate	I couldn't be bifurcating you couldn't be bifurcating he couldn't be bifurcating we couldn't be bifurcating you couldn't be bifurcating they couldn't be bifurcating
Perfect	V-ing perfect
I couldn't have bifurcated you couldn't have bifurcated he couldn't have bifurcated we couldn't have bifurcated you couldn't have bifurcated they couldn't have bifurcated	I couldn't have been bifurcating you couldn't have been bifurcating he couldn't have been bifurcating we couldn't have been bifurcating you couldn't have been bifurcating they couldn't have been bifurcating

Interrogative form

Simple form	V-ing form
could I bifurcate? could you bifurcate? could he bifurcate? could we bifurcate? could you bifurcate? could they bifurcate?	could I be bifurcating? could you be bifurcating? could he be bifurcating? could we be bifurcating? could you be bifurcating? could they be bifurcating?
Perfect	V-ing perfect
could I have bifurcated? could you have bifurcated? could he have bifurcated? could we have bifurcated? could you have bifurcated? could they have bifurcated?	could I have been bifurcating? could you have been bifurcating? could he have been bifurcating? could we have been bifurcating? could you have been bifurcating? could they have been bifurcating?

Interro-negative form

Simple form	V-ing form
couldn't I bifurcate? couldn't you bifurcate? couldn't he bifurcate? couldn't we bifurcate? couldn't you bifurcate? couldn't they bifurcate?	couldn't I be bifurcating? couldn't you be bifurcating? couldn't he be bifurcating? couldn't we be bifurcating? couldn't you be bifurcating? couldn't they be bifurcating?
Perfect	V-ing perfect
couldn't I have bifurcated? couldn't you have bifurcated? couldn't he have bifurcated? couldn't we have bifurcated? couldn't you have bifurcated? couldn't they have bifurcated?	couldn't I have been bifurcating? couldn't you have been bifurcating? couldn't he have been bifurcating? couldn't we have been bifurcating? couldn't you have been bifurcating? couldn't they have been bifurcating?