English verb conjugation
COULD LACE

Regular verb: lace - laced - laced

Affirmation

Simple form	V-ing form
I could lace you could lace he could lace we could lace you could lace they could lace	I could be lacing you could be lacing he could be lacing we could be lacing you could be lacing they could be lacing
Perfect	V-ing perfect
I could have laced you could have laced he could have laced we could have laced you could have laced they could have laced	I could have been lacing you could have been lacing he could have been lacing we could have been lacing you could have been lacing they could have been lacing

Negation

Simple form	V-ing form
I couldn't lace you couldn't lace he couldn't lace we couldn't lace you couldn't lace they couldn't lace	I couldn't be lacing you couldn't be lacing he couldn't be lacing we couldn't be lacing you couldn't be lacing they couldn't be lacing
Perfect	V-ing perfect
I couldn't have laced you couldn't have laced he couldn't have laced we couldn't have laced you couldn't have laced they couldn't have laced	I couldn't have been lacing you couldn't have been lacing he couldn't have been lacing we couldn't have been lacing you couldn't have been lacing they couldn't have been lacing

Interrogative form

Simple form	V-ing form
could I lace? could you lace? could he lace? could we lace? could you lace? could they lace?	could I be lacing? could you be lacing? could he be lacing? could we be lacing? could you be lacing? could they be lacing?
Perfect	V-ing perfect
could I have laced? could you have laced? could he have laced? could we have laced? could you have laced? could they have laced?	could I have been lacing? could you have been lacing? could he have been lacing? could we have been lacing? could you have been lacing? could they have been lacing?

Interro-negative form

Simple form	V-ing form
couldn't I lace? couldn't you lace? couldn't he lace? couldn't we lace? couldn't you lace? couldn't they lace?	couldn't I be lacing? couldn't you be lacing? couldn't he be lacing? couldn't we be lacing? couldn't you be lacing? couldn't they be lacing?
Perfect	V-ing perfect
couldn't I have laced? couldn't you have laced? couldn't he have laced? couldn't we have laced? couldn't you have laced? couldn't they have laced?	couldn't I have been lacing? couldn't you have been lacing? couldn't he have been lacing? couldn't we have been lacing? couldn't you have been lacing? couldn't they have been lacing?