English verb conjugation
COULD TURF

Regular verb: turf - turfed - turfed

Affirmation

Simple form	V-ing form
I could turf you could turf she could turf we could turf you could turf they could turf	I could be turfing you could be turfing she 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 she 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 she 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 couldn't turf you couldn't turf she couldn't turf we couldn't turf you couldn't turf they couldn't turf	I couldn't be turfing you couldn't be turfing she couldn't be turfing we couldn't be turfing you couldn't be turfing they couldn't be turfing
Perfect	V-ing perfect
I couldn't have turfed you couldn't have turfed she couldn't have turfed we couldn't have turfed you couldn't have turfed they couldn't have turfed	I couldn't have been turfing you couldn't have been turfing she couldn't have been turfing we couldn't have been turfing you couldn't have been turfing they couldn't have been turfing

Interrogative form

Simple form	V-ing form
could I turf? could you turf? could she turf? could we turf? could you turf? could they turf?	could I be turfing? could you be turfing? could she 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 she 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 she 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
couldn't I turf? couldn't you turf? couldn't she turf? couldn't we turf? couldn't you turf? couldn't they turf?	couldn't I be turfing? couldn't you be turfing? couldn't she be turfing? couldn't we be turfing? couldn't you be turfing? couldn't they be turfing?
Perfect	V-ing perfect
couldn't I have turfed? couldn't you have turfed? couldn't she have turfed? couldn't we have turfed? couldn't you have turfed? couldn't they have turfed?	couldn't I have been turfing? couldn't you have been turfing? couldn't she have been turfing? couldn't we have been turfing? couldn't you have been turfing? couldn't they have been turfing?