English verb conjugation
COULD SKIRMISH

Regular verb: skirmish - skirmished - skirmished

Affirmation

Simple form	V-ing form
I could skirmish you could skirmish he could skirmish we could skirmish you could skirmish they could skirmish	I could be skirmishing you could be skirmishing he could be skirmishing we could be skirmishing you could be skirmishing they could be skirmishing
Perfect	V-ing perfect
I could have skirmished you could have skirmished he could have skirmished we could have skirmished you could have skirmished they could have skirmished	I could have been skirmishing you could have been skirmishing he could have been skirmishing we could have been skirmishing you could have been skirmishing they could have been skirmishing

Negation

Simple form	V-ing form
I couldn't skirmish you couldn't skirmish he couldn't skirmish we couldn't skirmish you couldn't skirmish they couldn't skirmish	I couldn't be skirmishing you couldn't be skirmishing he couldn't be skirmishing we couldn't be skirmishing you couldn't be skirmishing they couldn't be skirmishing
Perfect	V-ing perfect
I couldn't have skirmished you couldn't have skirmished he couldn't have skirmished we couldn't have skirmished you couldn't have skirmished they couldn't have skirmished	I couldn't have been skirmishing you couldn't have been skirmishing he couldn't have been skirmishing we couldn't have been skirmishing you couldn't have been skirmishing they couldn't have been skirmishing

Interrogative form

Simple form	V-ing form
could I skirmish? could you skirmish? could he skirmish? could we skirmish? could you skirmish? could they skirmish?	could I be skirmishing? could you be skirmishing? could he be skirmishing? could we be skirmishing? could you be skirmishing? could they be skirmishing?
Perfect	V-ing perfect
could I have skirmished? could you have skirmished? could he have skirmished? could we have skirmished? could you have skirmished? could they have skirmished?	could I have been skirmishing? could you have been skirmishing? could he have been skirmishing? could we have been skirmishing? could you have been skirmishing? could they have been skirmishing?

Interro-negative form

Simple form	V-ing form
couldn't I skirmish? couldn't you skirmish? couldn't he skirmish? couldn't we skirmish? couldn't you skirmish? couldn't they skirmish?	couldn't I be skirmishing? couldn't you be skirmishing? couldn't he be skirmishing? couldn't we be skirmishing? couldn't you be skirmishing? couldn't they be skirmishing?
Perfect	V-ing perfect
couldn't I have skirmished? couldn't you have skirmished? couldn't he have skirmished? couldn't we have skirmished? couldn't you have skirmished? couldn't they have skirmished?	couldn't I have been skirmishing? couldn't you have been skirmishing? couldn't he have been skirmishing? couldn't we have been skirmishing? couldn't you have been skirmishing? couldn't they have been skirmishing?