English verb conjugation
CAN MUFF

Regular verb: muff - muffed - muffed

Affirmation

Simple form	V-ing form
I can muff you can muff she can muff we can muff you can muff they can muff	I can be muffing you can be muffing she can be muffing we can be muffing you can be muffing they can be muffing
Perfect	V-ing perfect
I can have muffed you can have muffed she can have muffed we can have muffed you can have muffed they can have muffed	I can have been muffing you can have been muffing she can have been muffing we can have been muffing you can have been muffing they can have been muffing

Negation

Simple form	V-ing form
I cannot muff you cannot muff she cannot muff we cannot muff you cannot muff they cannot muff	I cannot be muffing you cannot be muffing she cannot be muffing we cannot be muffing you cannot be muffing they cannot be muffing
Perfect	V-ing perfect
I cannot have muffed you cannot have muffed she cannot have muffed we cannot have muffed you cannot have muffed they cannot have muffed	I cannot have been muffing you cannot have been muffing she cannot have been muffing we cannot have been muffing you cannot have been muffing they cannot have been muffing

Interrogative form

Simple form	V-ing form
can I muff? can you muff? can she muff? can we muff? can you muff? can they muff?	can I be muffing? can you be muffing? can she be muffing? can we be muffing? can you be muffing? can they be muffing?
Perfect	V-ing perfect
can I have muffed? can you have muffed? can she have muffed? can we have muffed? can you have muffed? can they have muffed?	can I have been muffing? can you have been muffing? can she have been muffing? can we have been muffing? can you have been muffing? can they have been muffing?

Interro-negative form

Simple form	V-ing form
can I not muff? can you not muff? can she not muff? can we not muff? can you not muff? can they not muff?	can I not be muffing? can you not be muffing? can she not be muffing? can we not be muffing? can you not be muffing? can they not be muffing?
Perfect	V-ing perfect
can I not have muffed? can you not have muffed? can she not have muffed? can we not have muffed? can you not have muffed? can they not have muffed?	can I not have been muffing? can you not have been muffing? can she not have been muffing? can we not have been muffing? can you not have been muffing? can they not have been muffing?