English verb conjugation
COULD DODDER

Regular verb: dodder - doddered - doddered

Affirmation

Simple form	V-ing form
I could dodder you could dodder he could dodder we could dodder you could dodder they could dodder	I could be doddering you could be doddering he could be doddering we could be doddering you could be doddering they could be doddering
Perfect	V-ing perfect
I could have doddered you could have doddered he could have doddered we could have doddered you could have doddered they could have doddered	I could have been doddering you could have been doddering he could have been doddering we could have been doddering you could have been doddering they could have been doddering

Negation

Simple form	V-ing form
I couldn't dodder you couldn't dodder he couldn't dodder we couldn't dodder you couldn't dodder they couldn't dodder	I couldn't be doddering you couldn't be doddering he couldn't be doddering we couldn't be doddering you couldn't be doddering they couldn't be doddering
Perfect	V-ing perfect
I couldn't have doddered you couldn't have doddered he couldn't have doddered we couldn't have doddered you couldn't have doddered they couldn't have doddered	I couldn't have been doddering you couldn't have been doddering he couldn't have been doddering we couldn't have been doddering you couldn't have been doddering they couldn't have been doddering

Interrogative form

Simple form	V-ing form
could I dodder? could you dodder? could he dodder? could we dodder? could you dodder? could they dodder?	could I be doddering? could you be doddering? could he be doddering? could we be doddering? could you be doddering? could they be doddering?
Perfect	V-ing perfect
could I have doddered? could you have doddered? could he have doddered? could we have doddered? could you have doddered? could they have doddered?	could I have been doddering? could you have been doddering? could he have been doddering? could we have been doddering? could you have been doddering? could they have been doddering?

Interro-negative form

Simple form	V-ing form
couldn't I dodder? couldn't you dodder? couldn't he dodder? couldn't we dodder? couldn't you dodder? couldn't they dodder?	couldn't I be doddering? couldn't you be doddering? couldn't he be doddering? couldn't we be doddering? couldn't you be doddering? couldn't they be doddering?
Perfect	V-ing perfect
couldn't I have doddered? couldn't you have doddered? couldn't he have doddered? couldn't we have doddered? couldn't you have doddered? couldn't they have doddered?	couldn't I have been doddering? couldn't you have been doddering? couldn't he have been doddering? couldn't we have been doddering? couldn't you have been doddering? couldn't they have been doddering?