English verb conjugation
COULD FUSS

Regular verb: fuss - fussed - fussed

Affirmation

Simple form	V-ing form
I could fuss you could fuss he could fuss we could fuss you could fuss they could fuss	I could be fussing you could be fussing he could be fussing we could be fussing you could be fussing they could be fussing
Perfect	V-ing perfect
I could have fussed you could have fussed he could have fussed we could have fussed you could have fussed they could have fussed	I could have been fussing you could have been fussing he could have been fussing we could have been fussing you could have been fussing they could have been fussing

Negation

Simple form	V-ing form
I could not fuss you could not fuss he could not fuss we could not fuss you could not fuss they could not fuss	I could not be fussing you could not be fussing he could not be fussing we could not be fussing you could not be fussing they could not be fussing
Perfect	V-ing perfect
I could not have fussed you could not have fussed he could not have fussed we could not have fussed you could not have fussed they could not have fussed	I could not have been fussing you could not have been fussing he could not have been fussing we could not have been fussing you could not have been fussing they could not have been fussing

Interrogative form

Simple form	V-ing form
could I fuss? could you fuss? could he fuss? could we fuss? could you fuss? could they fuss?	could I be fussing? could you be fussing? could he be fussing? could we be fussing? could you be fussing? could they be fussing?
Perfect	V-ing perfect
could I have fussed? could you have fussed? could he have fussed? could we have fussed? could you have fussed? could they have fussed?	could I have been fussing? could you have been fussing? could he have been fussing? could we have been fussing? could you have been fussing? could they have been fussing?

Interro-negative form

Simple form	V-ing form
could I not fuss? could you not fuss? could he not fuss? could we not fuss? could you not fuss? could they not fuss?	could I not be fussing? could you not be fussing? could he not be fussing? could we not be fussing? could you not be fussing? could they not be fussing?
Perfect	V-ing perfect
could I not have fussed? could you not have fussed? could he not have fussed? could we not have fussed? could you not have fussed? could they not have fussed?	could I not have been fussing? could you not have been fussing? could he not have been fussing? could we not have been fussing? could you not have been fussing? could they not have been fussing?