English verb conjugation
COULD LITIGATE

Regular verb: litigate - litigated - litigated

Affirmation

Simple form	V-ing form
I could litigate you could litigate he could litigate we could litigate you could litigate they could litigate	I could be litigating you could be litigating he could be litigating we could be litigating you could be litigating they could be litigating
Perfect	V-ing perfect
I could have litigated you could have litigated he could have litigated we could have litigated you could have litigated they could have litigated	I could have been litigating you could have been litigating he could have been litigating we could have been litigating you could have been litigating they could have been litigating

Negation

Simple form	V-ing form
I couldn't litigate you couldn't litigate he couldn't litigate we couldn't litigate you couldn't litigate they couldn't litigate	I couldn't be litigating you couldn't be litigating he couldn't be litigating we couldn't be litigating you couldn't be litigating they couldn't be litigating
Perfect	V-ing perfect
I couldn't have litigated you couldn't have litigated he couldn't have litigated we couldn't have litigated you couldn't have litigated they couldn't have litigated	I couldn't have been litigating you couldn't have been litigating he couldn't have been litigating we couldn't have been litigating you couldn't have been litigating they couldn't have been litigating

Interrogative form

Simple form	V-ing form
could I litigate? could you litigate? could he litigate? could we litigate? could you litigate? could they litigate?	could I be litigating? could you be litigating? could he be litigating? could we be litigating? could you be litigating? could they be litigating?
Perfect	V-ing perfect
could I have litigated? could you have litigated? could he have litigated? could we have litigated? could you have litigated? could they have litigated?	could I have been litigating? could you have been litigating? could he have been litigating? could we have been litigating? could you have been litigating? could they have been litigating?

Interro-negative form

Simple form	V-ing form
couldn't I litigate? couldn't you litigate? couldn't he litigate? couldn't we litigate? couldn't you litigate? couldn't they litigate?	couldn't I be litigating? couldn't you be litigating? couldn't he be litigating? couldn't we be litigating? couldn't you be litigating? couldn't they be litigating?
Perfect	V-ing perfect
couldn't I have litigated? couldn't you have litigated? couldn't he have litigated? couldn't we have litigated? couldn't you have litigated? couldn't they have litigated?	couldn't I have been litigating? couldn't you have been litigating? couldn't he have been litigating? couldn't we have been litigating? couldn't you have been litigating? couldn't they have been litigating?