English verb conjugation
CAN FUSS

Regular verb: fuss - fussed - fussed

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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