English verb conjugation
COULD PARAFFIN

Regular verb: paraffin - paraffined - paraffined

Affirmation

Simple form	V-ing form
I could paraffin you could paraffin he could paraffin we could paraffin you could paraffin they could paraffin	I could be paraffining you could be paraffining he could be paraffining we could be paraffining you could be paraffining they could be paraffining
Perfect	V-ing perfect
I could have paraffined you could have paraffined he could have paraffined we could have paraffined you could have paraffined they could have paraffined	I could have been paraffining you could have been paraffining he could have been paraffining we could have been paraffining you could have been paraffining they could have been paraffining

Negation

Simple form	V-ing form
I couldn't paraffin you couldn't paraffin he couldn't paraffin we couldn't paraffin you couldn't paraffin they couldn't paraffin	I couldn't be paraffining you couldn't be paraffining he couldn't be paraffining we couldn't be paraffining you couldn't be paraffining they couldn't be paraffining
Perfect	V-ing perfect
I couldn't have paraffined you couldn't have paraffined he couldn't have paraffined we couldn't have paraffined you couldn't have paraffined they couldn't have paraffined	I couldn't have been paraffining you couldn't have been paraffining he couldn't have been paraffining we couldn't have been paraffining you couldn't have been paraffining they couldn't have been paraffining

Interrogative form

Simple form	V-ing form
could I paraffin? could you paraffin? could he paraffin? could we paraffin? could you paraffin? could they paraffin?	could I be paraffining? could you be paraffining? could he be paraffining? could we be paraffining? could you be paraffining? could they be paraffining?
Perfect	V-ing perfect
could I have paraffined? could you have paraffined? could he have paraffined? could we have paraffined? could you have paraffined? could they have paraffined?	could I have been paraffining? could you have been paraffining? could he have been paraffining? could we have been paraffining? could you have been paraffining? could they have been paraffining?

Interro-negative form

Simple form	V-ing form
couldn't I paraffin? couldn't you paraffin? couldn't he paraffin? couldn't we paraffin? couldn't you paraffin? couldn't they paraffin?	couldn't I be paraffining? couldn't you be paraffining? couldn't he be paraffining? couldn't we be paraffining? couldn't you be paraffining? couldn't they be paraffining?
Perfect	V-ing perfect
couldn't I have paraffined? couldn't you have paraffined? couldn't he have paraffined? couldn't we have paraffined? couldn't you have paraffined? couldn't they have paraffined?	couldn't I have been paraffining? couldn't you have been paraffining? couldn't he have been paraffining? couldn't we have been paraffining? couldn't you have been paraffining? couldn't they have been paraffining?