English verb conjugation
CAN SCARF

Regular verb: scarf - scarfed - scarfed

Affirmation

Simple form	V-ing form
I can scarf you can scarf she can scarf we can scarf you can scarf they can scarf	I can be scarfing you can be scarfing she can be scarfing we can be scarfing you can be scarfing they can be scarfing
Perfect	V-ing perfect
I can have scarfed you can have scarfed she can have scarfed we can have scarfed you can have scarfed they can have scarfed	I can have been scarfing you can have been scarfing she can have been scarfing we can have been scarfing you can have been scarfing they can have been scarfing

Negation

Simple form	V-ing form
I can't scarf you can't scarf she can't scarf we can't scarf you can't scarf they can't scarf	I can't be scarfing you can't be scarfing she can't be scarfing we can't be scarfing you can't be scarfing they can't be scarfing
Perfect	V-ing perfect
I can't have scarfed you can't have scarfed she can't have scarfed we can't have scarfed you can't have scarfed they can't have scarfed	I can't have been scarfing you can't have been scarfing she can't have been scarfing we can't have been scarfing you can't have been scarfing they can't have been scarfing

Interrogative form

Simple form	V-ing form
can I scarf? can you scarf? can she scarf? can we scarf? can you scarf? can they scarf?	can I be scarfing? can you be scarfing? can she be scarfing? can we be scarfing? can you be scarfing? can they be scarfing?
Perfect	V-ing perfect
can I have scarfed? can you have scarfed? can she have scarfed? can we have scarfed? can you have scarfed? can they have scarfed?	can I have been scarfing? can you have been scarfing? can she have been scarfing? can we have been scarfing? can you have been scarfing? can they have been scarfing?

Interro-negative form

Simple form	V-ing form
can't I scarf? can't you scarf? can't she scarf? can't we scarf? can't you scarf? can't they scarf?	can't I be scarfing? can't you be scarfing? can't she be scarfing? can't we be scarfing? can't you be scarfing? can't they be scarfing?
Perfect	V-ing perfect
can't I have scarfed? can't you have scarfed? can't she have scarfed? can't we have scarfed? can't you have scarfed? can't they have scarfed?	can't I have been scarfing? can't you have been scarfing? can't she have been scarfing? can't we have been scarfing? can't you have been scarfing? can't they have been scarfing?