English verb conjugation
CAN GNAW

Regular verb: gnaw - gnawed - gnawed

Affirmation

Simple form	V-ing form
I can gnaw you can gnaw he can gnaw we can gnaw you can gnaw they can gnaw	I can be gnawing you can be gnawing he can be gnawing we can be gnawing you can be gnawing they can be gnawing
Perfect	V-ing perfect
I can have gnawed you can have gnawed he can have gnawed we can have gnawed you can have gnawed they can have gnawed	I can have been gnawing you can have been gnawing he can have been gnawing we can have been gnawing you can have been gnawing they can have been gnawing

Negation

Simple form	V-ing form
I can't gnaw you can't gnaw he can't gnaw we can't gnaw you can't gnaw they can't gnaw	I can't be gnawing you can't be gnawing he can't be gnawing we can't be gnawing you can't be gnawing they can't be gnawing
Perfect	V-ing perfect
I can't have gnawed you can't have gnawed he can't have gnawed we can't have gnawed you can't have gnawed they can't have gnawed	I can't have been gnawing you can't have been gnawing he can't have been gnawing we can't have been gnawing you can't have been gnawing they can't have been gnawing

Interrogative form

Simple form	V-ing form
can I gnaw? can you gnaw? can he gnaw? can we gnaw? can you gnaw? can they gnaw?	can I be gnawing? can you be gnawing? can he be gnawing? can we be gnawing? can you be gnawing? can they be gnawing?
Perfect	V-ing perfect
can I have gnawed? can you have gnawed? can he have gnawed? can we have gnawed? can you have gnawed? can they have gnawed?	can I have been gnawing? can you have been gnawing? can he have been gnawing? can we have been gnawing? can you have been gnawing? can they have been gnawing?

Interro-negative form

Simple form	V-ing form
can't I gnaw? can't you gnaw? can't he gnaw? can't we gnaw? can't you gnaw? can't they gnaw?	can't I be gnawing? can't you be gnawing? can't he be gnawing? can't we be gnawing? can't you be gnawing? can't they be gnawing?
Perfect	V-ing perfect
can't I have gnawed? can't you have gnawed? can't he have gnawed? can't we have gnawed? can't you have gnawed? can't they have gnawed?	can't I have been gnawing? can't you have been gnawing? can't he have been gnawing? can't we have been gnawing? can't you have been gnawing? can't they have been gnawing?