English verb conjugation
COULD TURF

Regular verb: turf - turfed - turfed

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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