English verb conjugation
COULD POND

Regular verb: pond - ponded - ponded

Affirmation

Simple form	V-ing form
I could pond you could pond he could pond we could pond you could pond they could pond	I could be ponding you could be ponding he could be ponding we could be ponding you could be ponding they could be ponding
Perfect	V-ing perfect
I could have ponded you could have ponded he could have ponded we could have ponded you could have ponded they could have ponded	I could have been ponding you could have been ponding he could have been ponding we could have been ponding you could have been ponding they could have been ponding

Negation

Simple form	V-ing form
I couldn't pond you couldn't pond he couldn't pond we couldn't pond you couldn't pond they couldn't pond	I couldn't be ponding you couldn't be ponding he couldn't be ponding we couldn't be ponding you couldn't be ponding they couldn't be ponding
Perfect	V-ing perfect
I couldn't have ponded you couldn't have ponded he couldn't have ponded we couldn't have ponded you couldn't have ponded they couldn't have ponded	I couldn't have been ponding you couldn't have been ponding he couldn't have been ponding we couldn't have been ponding you couldn't have been ponding they couldn't have been ponding

Interrogative form

Simple form	V-ing form
could I pond? could you pond? could he pond? could we pond? could you pond? could they pond?	could I be ponding? could you be ponding? could he be ponding? could we be ponding? could you be ponding? could they be ponding?
Perfect	V-ing perfect
could I have ponded? could you have ponded? could he have ponded? could we have ponded? could you have ponded? could they have ponded?	could I have been ponding? could you have been ponding? could he have been ponding? could we have been ponding? could you have been ponding? could they have been ponding?

Interro-negative form

Simple form	V-ing form
couldn't I pond? couldn't you pond? couldn't he pond? couldn't we pond? couldn't you pond? couldn't they pond?	couldn't I be ponding? couldn't you be ponding? couldn't he be ponding? couldn't we be ponding? couldn't you be ponding? couldn't they be ponding?
Perfect	V-ing perfect
couldn't I have ponded? couldn't you have ponded? couldn't he have ponded? couldn't we have ponded? couldn't you have ponded? couldn't they have ponded?	couldn't I have been ponding? couldn't you have been ponding? couldn't he have been ponding? couldn't we have been ponding? couldn't you have been ponding? couldn't they have been ponding?