English verb conjugation
COULD EMULSIFY

Regular verb: emulsify - emulsified - emulsified

Affirmation

Simple form	V-ing form
I could emulsify you could emulsify she could emulsify we could emulsify you could emulsify they could emulsify	I could be emulsifying you could be emulsifying she could be emulsifying we could be emulsifying you could be emulsifying they could be emulsifying
Perfect	V-ing perfect
I could have emulsified you could have emulsified she could have emulsified we could have emulsified you could have emulsified they could have emulsified	I could have been emulsifying you could have been emulsifying she could have been emulsifying we could have been emulsifying you could have been emulsifying they could have been emulsifying

Negation

Simple form	V-ing form
I couldn't emulsify you couldn't emulsify she couldn't emulsify we couldn't emulsify you couldn't emulsify they couldn't emulsify	I couldn't be emulsifying you couldn't be emulsifying she couldn't be emulsifying we couldn't be emulsifying you couldn't be emulsifying they couldn't be emulsifying
Perfect	V-ing perfect
I couldn't have emulsified you couldn't have emulsified she couldn't have emulsified we couldn't have emulsified you couldn't have emulsified they couldn't have emulsified	I couldn't have been emulsifying you couldn't have been emulsifying she couldn't have been emulsifying we couldn't have been emulsifying you couldn't have been emulsifying they couldn't have been emulsifying

Interrogative form

Simple form	V-ing form
could I emulsify? could you emulsify? could she emulsify? could we emulsify? could you emulsify? could they emulsify?	could I be emulsifying? could you be emulsifying? could she be emulsifying? could we be emulsifying? could you be emulsifying? could they be emulsifying?
Perfect	V-ing perfect
could I have emulsified? could you have emulsified? could she have emulsified? could we have emulsified? could you have emulsified? could they have emulsified?	could I have been emulsifying? could you have been emulsifying? could she have been emulsifying? could we have been emulsifying? could you have been emulsifying? could they have been emulsifying?

Interro-negative form

Simple form	V-ing form
couldn't I emulsify? couldn't you emulsify? couldn't she emulsify? couldn't we emulsify? couldn't you emulsify? couldn't they emulsify?	couldn't I be emulsifying? couldn't you be emulsifying? couldn't she be emulsifying? couldn't we be emulsifying? couldn't you be emulsifying? couldn't they be emulsifying?
Perfect	V-ing perfect
couldn't I have emulsified? couldn't you have emulsified? couldn't she have emulsified? couldn't we have emulsified? couldn't you have emulsified? couldn't they have emulsified?	couldn't I have been emulsifying? couldn't you have been emulsifying? couldn't she have been emulsifying? couldn't we have been emulsifying? couldn't you have been emulsifying? couldn't they have been emulsifying?