English verb conjugation
COULD SOURCE

Regular verb: source - sourced - sourced

Affirmation

Simple form	V-ing form
I could source you could source she could source we could source you could source they could source	I could be sourcing you could be sourcing she 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 she 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 she 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 couldn't source you couldn't source she couldn't source we couldn't source you couldn't source they couldn't source	I couldn't be sourcing you couldn't be sourcing she couldn't be sourcing we couldn't be sourcing you couldn't be sourcing they couldn't be sourcing
Perfect	V-ing perfect
I couldn't have sourced you couldn't have sourced she couldn't have sourced we couldn't have sourced you couldn't have sourced they couldn't have sourced	I couldn't have been sourcing you couldn't have been sourcing she couldn't have been sourcing we couldn't have been sourcing you couldn't have been sourcing they couldn't have been sourcing

Interrogative form

Simple form	V-ing form
could I source? could you source? could she source? could we source? could you source? could they source?	could I be sourcing? could you be sourcing? could she 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 she 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 she 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
couldn't I source? couldn't you source? couldn't she source? couldn't we source? couldn't you source? couldn't they source?	couldn't I be sourcing? couldn't you be sourcing? couldn't she be sourcing? couldn't we be sourcing? couldn't you be sourcing? couldn't they be sourcing?
Perfect	V-ing perfect
couldn't I have sourced? couldn't you have sourced? couldn't she have sourced? couldn't we have sourced? couldn't you have sourced? couldn't they have sourced?	couldn't I have been sourcing? couldn't you have been sourcing? couldn't she have been sourcing? couldn't we have been sourcing? couldn't you have been sourcing? couldn't they have been sourcing?