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 can't fuss you can't fuss he can't fuss we can't fuss you can't fuss they can't fuss	I can't be fussing you can't be fussing he can't be fussing we can't be fussing you can't be fussing they can't be fussing
Perfect	V-ing perfect
I can't have fussed you can't have fussed he can't have fussed we can't have fussed you can't have fussed they can't have fussed	I can't have been fussing you can't have been fussing he can't have been fussing we can't have been fussing you can't have been fussing they can't 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't I fuss? can't you fuss? can't he fuss? can't we fuss? can't you fuss? can't they fuss?	can't I be fussing? can't you be fussing? can't he be fussing? can't we be fussing? can't you be fussing? can't they be fussing?
Perfect	V-ing perfect
can't I have fussed? can't you have fussed? can't he have fussed? can't we have fussed? can't you have fussed? can't they have fussed?	can't I have been fussing? can't you have been fussing? can't he have been fussing? can't we have been fussing? can't you have been fussing? can't they have been fussing?