English verb conjugation
COULD UNCASE

Regular verb: uncase - uncased - uncased

Affirmation

Simple form	V-ing form
I could uncase you could uncase she could uncase we could uncase you could uncase they could uncase	I could be uncasing you could be uncasing she could be uncasing we could be uncasing you could be uncasing they could be uncasing
Perfect	V-ing perfect
I could have uncased you could have uncased she could have uncased we could have uncased you could have uncased they could have uncased	I could have been uncasing you could have been uncasing she could have been uncasing we could have been uncasing you could have been uncasing they could have been uncasing

Negation

Simple form	V-ing form
I couldn't uncase you couldn't uncase she couldn't uncase we couldn't uncase you couldn't uncase they couldn't uncase	I couldn't be uncasing you couldn't be uncasing she couldn't be uncasing we couldn't be uncasing you couldn't be uncasing they couldn't be uncasing
Perfect	V-ing perfect
I couldn't have uncased you couldn't have uncased she couldn't have uncased we couldn't have uncased you couldn't have uncased they couldn't have uncased	I couldn't have been uncasing you couldn't have been uncasing she couldn't have been uncasing we couldn't have been uncasing you couldn't have been uncasing they couldn't have been uncasing

Interrogative form

Simple form	V-ing form
could I uncase? could you uncase? could she uncase? could we uncase? could you uncase? could they uncase?	could I be uncasing? could you be uncasing? could she be uncasing? could we be uncasing? could you be uncasing? could they be uncasing?
Perfect	V-ing perfect
could I have uncased? could you have uncased? could she have uncased? could we have uncased? could you have uncased? could they have uncased?	could I have been uncasing? could you have been uncasing? could she have been uncasing? could we have been uncasing? could you have been uncasing? could they have been uncasing?

Interro-negative form

Simple form	V-ing form
couldn't I uncase? couldn't you uncase? couldn't she uncase? couldn't we uncase? couldn't you uncase? couldn't they uncase?	couldn't I be uncasing? couldn't you be uncasing? couldn't she be uncasing? couldn't we be uncasing? couldn't you be uncasing? couldn't they be uncasing?
Perfect	V-ing perfect
couldn't I have uncased? couldn't you have uncased? couldn't she have uncased? couldn't we have uncased? couldn't you have uncased? couldn't they have uncased?	couldn't I have been uncasing? couldn't you have been uncasing? couldn't she have been uncasing? couldn't we have been uncasing? couldn't you have been uncasing? couldn't they have been uncasing?