English verb conjugation
COULD REBUTTON

Regular verb: rebutton - rebuttoned - rebuttoned

Affirmation

Simple form	V-ing form
I could rebutton you could rebutton she could rebutton we could rebutton you could rebutton they could rebutton	I could be rebuttoning you could be rebuttoning she could be rebuttoning we could be rebuttoning you could be rebuttoning they could be rebuttoning
Perfect	V-ing perfect
I could have rebuttoned you could have rebuttoned she could have rebuttoned we could have rebuttoned you could have rebuttoned they could have rebuttoned	I could have been rebuttoning you could have been rebuttoning she could have been rebuttoning we could have been rebuttoning you could have been rebuttoning they could have been rebuttoning

Negation

Simple form	V-ing form
I couldn't rebutton you couldn't rebutton she couldn't rebutton we couldn't rebutton you couldn't rebutton they couldn't rebutton	I couldn't be rebuttoning you couldn't be rebuttoning she couldn't be rebuttoning we couldn't be rebuttoning you couldn't be rebuttoning they couldn't be rebuttoning
Perfect	V-ing perfect
I couldn't have rebuttoned you couldn't have rebuttoned she couldn't have rebuttoned we couldn't have rebuttoned you couldn't have rebuttoned they couldn't have rebuttoned	I couldn't have been rebuttoning you couldn't have been rebuttoning she couldn't have been rebuttoning we couldn't have been rebuttoning you couldn't have been rebuttoning they couldn't have been rebuttoning

Interrogative form

Simple form	V-ing form
could I rebutton? could you rebutton? could she rebutton? could we rebutton? could you rebutton? could they rebutton?	could I be rebuttoning? could you be rebuttoning? could she be rebuttoning? could we be rebuttoning? could you be rebuttoning? could they be rebuttoning?
Perfect	V-ing perfect
could I have rebuttoned? could you have rebuttoned? could she have rebuttoned? could we have rebuttoned? could you have rebuttoned? could they have rebuttoned?	could I have been rebuttoning? could you have been rebuttoning? could she have been rebuttoning? could we have been rebuttoning? could you have been rebuttoning? could they have been rebuttoning?

Interro-negative form

Simple form	V-ing form
couldn't I rebutton? couldn't you rebutton? couldn't she rebutton? couldn't we rebutton? couldn't you rebutton? couldn't they rebutton?	couldn't I be rebuttoning? couldn't you be rebuttoning? couldn't she be rebuttoning? couldn't we be rebuttoning? couldn't you be rebuttoning? couldn't they be rebuttoning?
Perfect	V-ing perfect
couldn't I have rebuttoned? couldn't you have rebuttoned? couldn't she have rebuttoned? couldn't we have rebuttoned? couldn't you have rebuttoned? couldn't they have rebuttoned?	couldn't I have been rebuttoning? couldn't you have been rebuttoning? couldn't she have been rebuttoning? couldn't we have been rebuttoning? couldn't you have been rebuttoning? couldn't they have been rebuttoning?