English verb conjugation
COULD SOURCE

Regular verb: source - sourced - sourced

Affirmation

Simple form	V-ing form
I could source you could source he could source we could source you could source they could source	I could be sourcing you could be sourcing he could be sourcing we could be sourcing you could be sourcing they could be sourcing
Perfect	V-ing perfect
I could have sourced you could have sourced he could have sourced we could have sourced you could have sourced they could have sourced	I could have been sourcing you could have been sourcing he could have been sourcing we could have been sourcing you could have been sourcing they could have been sourcing

Negation

Simple form	V-ing form
I could not source you could not source he could not source we could not source you could not source they could not source	I could not be sourcing you could not be sourcing he could not be sourcing we could not be sourcing you could not be sourcing they could not be sourcing
Perfect	V-ing perfect
I could not have sourced you could not have sourced he could not have sourced we could not have sourced you could not have sourced they could not have sourced	I could not have been sourcing you could not have been sourcing he could not have been sourcing we could not have been sourcing you could not have been sourcing they could not have been sourcing

Interrogative form

Simple form	V-ing form
could I source? could you source? could he source? could we source? could you source? could they source?	could I be sourcing? could you be sourcing? could he be sourcing? could we be sourcing? could you be sourcing? could they be sourcing?
Perfect	V-ing perfect
could I have sourced? could you have sourced? could he have sourced? could we have sourced? could you have sourced? could they have sourced?	could I have been sourcing? could you have been sourcing? could he have been sourcing? could we have been sourcing? could you have been sourcing? could they have been sourcing?

Interro-negative form

Simple form	V-ing form
could I not source? could you not source? could he not source? could we not source? could you not source? could they not source?	could I not be sourcing? could you not be sourcing? could he not be sourcing? could we not be sourcing? could you not be sourcing? could they not be sourcing?
Perfect	V-ing perfect
could I not have sourced? could you not have sourced? could he not have sourced? could we not have sourced? could you not have sourced? could they not have sourced?	could I not have been sourcing? could you not have been sourcing? could he not have been sourcing? could we not have been sourcing? could you not have been sourcing? could they not have been sourcing?