English verb conjugation
COULD MATCH

Regular verb: match - matched - matched

Affirmation

Simple form	V-ing form
I could match you could match he could match we could match you could match they could match	I could be matching you could be matching he could be matching we could be matching you could be matching they could be matching
Perfect	V-ing perfect
I could have matched you could have matched he could have matched we could have matched you could have matched they could have matched	I could have been matching you could have been matching he could have been matching we could have been matching you could have been matching they could have been matching

Negation

Simple form	V-ing form
I couldn't match you couldn't match he couldn't match we couldn't match you couldn't match they couldn't match	I couldn't be matching you couldn't be matching he couldn't be matching we couldn't be matching you couldn't be matching they couldn't be matching
Perfect	V-ing perfect
I couldn't have matched you couldn't have matched he couldn't have matched we couldn't have matched you couldn't have matched they couldn't have matched	I couldn't have been matching you couldn't have been matching he couldn't have been matching we couldn't have been matching you couldn't have been matching they couldn't have been matching

Interrogative form

Simple form	V-ing form
could I match? could you match? could he match? could we match? could you match? could they match?	could I be matching? could you be matching? could he be matching? could we be matching? could you be matching? could they be matching?
Perfect	V-ing perfect
could I have matched? could you have matched? could he have matched? could we have matched? could you have matched? could they have matched?	could I have been matching? could you have been matching? could he have been matching? could we have been matching? could you have been matching? could they have been matching?

Interro-negative form

Simple form	V-ing form
couldn't I match? couldn't you match? couldn't he match? couldn't we match? couldn't you match? couldn't they match?	couldn't I be matching? couldn't you be matching? couldn't he be matching? couldn't we be matching? couldn't you be matching? couldn't they be matching?
Perfect	V-ing perfect
couldn't I have matched? couldn't you have matched? couldn't he have matched? couldn't we have matched? couldn't you have matched? couldn't they have matched?	couldn't I have been matching? couldn't you have been matching? couldn't he have been matching? couldn't we have been matching? couldn't you have been matching? couldn't they have been matching?