English verb conjugation
CAN TURF

Regular verb: turf - turfed - turfed

Affirmation

Simple form	V-ing form
I can turf you can turf he can turf we can turf you can turf they can turf	I can be turfing you can be turfing he can be turfing we can be turfing you can be turfing they can be turfing
Perfect	V-ing perfect
I can have turfed you can have turfed he can have turfed we can have turfed you can have turfed they can have turfed	I can have been turfing you can have been turfing he can have been turfing we can have been turfing you can have been turfing they can have been turfing

Negation

Simple form	V-ing form
I cannot turf you cannot turf he cannot turf we cannot turf you cannot turf they cannot turf	I cannot be turfing you cannot be turfing he cannot be turfing we cannot be turfing you cannot be turfing they cannot be turfing
Perfect	V-ing perfect
I cannot have turfed you cannot have turfed he cannot have turfed we cannot have turfed you cannot have turfed they cannot have turfed	I cannot have been turfing you cannot have been turfing he cannot have been turfing we cannot have been turfing you cannot have been turfing they cannot have been turfing

Interrogative form

Simple form	V-ing form
can I turf? can you turf? can he turf? can we turf? can you turf? can they turf?	can I be turfing? can you be turfing? can he be turfing? can we be turfing? can you be turfing? can they be turfing?
Perfect	V-ing perfect
can I have turfed? can you have turfed? can he have turfed? can we have turfed? can you have turfed? can they have turfed?	can I have been turfing? can you have been turfing? can he have been turfing? can we have been turfing? can you have been turfing? can they have been turfing?

Interro-negative form

Simple form	V-ing form
can I not turf? can you not turf? can he not turf? can we not turf? can you not turf? can they not turf?	can I not be turfing? can you not be turfing? can he not be turfing? can we not be turfing? can you not be turfing? can they not be turfing?
Perfect	V-ing perfect
can I not have turfed? can you not have turfed? can he not have turfed? can we not have turfed? can you not have turfed? can they not have turfed?	can I not have been turfing? can you not have been turfing? can he not have been turfing? can we not have been turfing? can you not have been turfing? can they not have been turfing?