English verb conjugation
COULD UPPERCASE

Regular verb: uppercase - uppercased - uppercased

Affirmation

Simple form	V-ing form
I could uppercase you could uppercase he could uppercase we could uppercase you could uppercase they could uppercase	I could be uppercasing you could be uppercasing he could be uppercasing we could be uppercasing you could be uppercasing they could be uppercasing
Perfect	V-ing perfect
I could have uppercased you could have uppercased he could have uppercased we could have uppercased you could have uppercased they could have uppercased	I could have been uppercasing you could have been uppercasing he could have been uppercasing we could have been uppercasing you could have been uppercasing they could have been uppercasing

Negation

Simple form	V-ing form
I couldn't uppercase you couldn't uppercase he couldn't uppercase we couldn't uppercase you couldn't uppercase they couldn't uppercase	I couldn't be uppercasing you couldn't be uppercasing he couldn't be uppercasing we couldn't be uppercasing you couldn't be uppercasing they couldn't be uppercasing
Perfect	V-ing perfect
I couldn't have uppercased you couldn't have uppercased he couldn't have uppercased we couldn't have uppercased you couldn't have uppercased they couldn't have uppercased	I couldn't have been uppercasing you couldn't have been uppercasing he couldn't have been uppercasing we couldn't have been uppercasing you couldn't have been uppercasing they couldn't have been uppercasing

Interrogative form

Simple form	V-ing form
could I uppercase? could you uppercase? could he uppercase? could we uppercase? could you uppercase? could they uppercase?	could I be uppercasing? could you be uppercasing? could he be uppercasing? could we be uppercasing? could you be uppercasing? could they be uppercasing?
Perfect	V-ing perfect
could I have uppercased? could you have uppercased? could he have uppercased? could we have uppercased? could you have uppercased? could they have uppercased?	could I have been uppercasing? could you have been uppercasing? could he have been uppercasing? could we have been uppercasing? could you have been uppercasing? could they have been uppercasing?

Interro-negative form

Simple form	V-ing form
couldn't I uppercase? couldn't you uppercase? couldn't he uppercase? couldn't we uppercase? couldn't you uppercase? couldn't they uppercase?	couldn't I be uppercasing? couldn't you be uppercasing? couldn't he be uppercasing? couldn't we be uppercasing? couldn't you be uppercasing? couldn't they be uppercasing?
Perfect	V-ing perfect
couldn't I have uppercased? couldn't you have uppercased? couldn't he have uppercased? couldn't we have uppercased? couldn't you have uppercased? couldn't they have uppercased?	couldn't I have been uppercasing? couldn't you have been uppercasing? couldn't he have been uppercasing? couldn't we have been uppercasing? couldn't you have been uppercasing? couldn't they have been uppercasing?