English verb conjugation
COULD REDUPLICATE

Regular verb: reduplicate - reduplicated - reduplicated

Affirmation

Simple form	V-ing form
I could reduplicate you could reduplicate he could reduplicate we could reduplicate you could reduplicate they could reduplicate	I could be reduplicating you could be reduplicating he could be reduplicating we could be reduplicating you could be reduplicating they could be reduplicating
Perfect	V-ing perfect
I could have reduplicated you could have reduplicated he could have reduplicated we could have reduplicated you could have reduplicated they could have reduplicated	I could have been reduplicating you could have been reduplicating he could have been reduplicating we could have been reduplicating you could have been reduplicating they could have been reduplicating

Negation

Simple form	V-ing form
I couldn't reduplicate you couldn't reduplicate he couldn't reduplicate we couldn't reduplicate you couldn't reduplicate they couldn't reduplicate	I couldn't be reduplicating you couldn't be reduplicating he couldn't be reduplicating we couldn't be reduplicating you couldn't be reduplicating they couldn't be reduplicating
Perfect	V-ing perfect
I couldn't have reduplicated you couldn't have reduplicated he couldn't have reduplicated we couldn't have reduplicated you couldn't have reduplicated they couldn't have reduplicated	I couldn't have been reduplicating you couldn't have been reduplicating he couldn't have been reduplicating we couldn't have been reduplicating you couldn't have been reduplicating they couldn't have been reduplicating

Interrogative form

Simple form	V-ing form
could I reduplicate? could you reduplicate? could he reduplicate? could we reduplicate? could you reduplicate? could they reduplicate?	could I be reduplicating? could you be reduplicating? could he be reduplicating? could we be reduplicating? could you be reduplicating? could they be reduplicating?
Perfect	V-ing perfect
could I have reduplicated? could you have reduplicated? could he have reduplicated? could we have reduplicated? could you have reduplicated? could they have reduplicated?	could I have been reduplicating? could you have been reduplicating? could he have been reduplicating? could we have been reduplicating? could you have been reduplicating? could they have been reduplicating?

Interro-negative form

Simple form	V-ing form
couldn't I reduplicate? couldn't you reduplicate? couldn't he reduplicate? couldn't we reduplicate? couldn't you reduplicate? couldn't they reduplicate?	couldn't I be reduplicating? couldn't you be reduplicating? couldn't he be reduplicating? couldn't we be reduplicating? couldn't you be reduplicating? couldn't they be reduplicating?
Perfect	V-ing perfect
couldn't I have reduplicated? couldn't you have reduplicated? couldn't he have reduplicated? couldn't we have reduplicated? couldn't you have reduplicated? couldn't they have reduplicated?	couldn't I have been reduplicating? couldn't you have been reduplicating? couldn't he have been reduplicating? couldn't we have been reduplicating? couldn't you have been reduplicating? couldn't they have been reduplicating?