English verb conjugation
COULD INTERLACE

Regular verb: interlace - interlaced - interlaced

Affirmation

Simple form	V-ing form
I could interlace you could interlace she could interlace we could interlace you could interlace they could interlace	I could be interlacing you could be interlacing she could be interlacing we could be interlacing you could be interlacing they could be interlacing
Perfect	V-ing perfect
I could have interlaced you could have interlaced she could have interlaced we could have interlaced you could have interlaced they could have interlaced	I could have been interlacing you could have been interlacing she could have been interlacing we could have been interlacing you could have been interlacing they could have been interlacing

Negation

Simple form	V-ing form
I couldn't interlace you couldn't interlace she couldn't interlace we couldn't interlace you couldn't interlace they couldn't interlace	I couldn't be interlacing you couldn't be interlacing she couldn't be interlacing we couldn't be interlacing you couldn't be interlacing they couldn't be interlacing
Perfect	V-ing perfect
I couldn't have interlaced you couldn't have interlaced she couldn't have interlaced we couldn't have interlaced you couldn't have interlaced they couldn't have interlaced	I couldn't have been interlacing you couldn't have been interlacing she couldn't have been interlacing we couldn't have been interlacing you couldn't have been interlacing they couldn't have been interlacing

Interrogative form

Simple form	V-ing form
could I interlace? could you interlace? could she interlace? could we interlace? could you interlace? could they interlace?	could I be interlacing? could you be interlacing? could she be interlacing? could we be interlacing? could you be interlacing? could they be interlacing?
Perfect	V-ing perfect
could I have interlaced? could you have interlaced? could she have interlaced? could we have interlaced? could you have interlaced? could they have interlaced?	could I have been interlacing? could you have been interlacing? could she have been interlacing? could we have been interlacing? could you have been interlacing? could they have been interlacing?

Interro-negative form

Simple form	V-ing form
couldn't I interlace? couldn't you interlace? couldn't she interlace? couldn't we interlace? couldn't you interlace? couldn't they interlace?	couldn't I be interlacing? couldn't you be interlacing? couldn't she be interlacing? couldn't we be interlacing? couldn't you be interlacing? couldn't they be interlacing?
Perfect	V-ing perfect
couldn't I have interlaced? couldn't you have interlaced? couldn't she have interlaced? couldn't we have interlaced? couldn't you have interlaced? couldn't they have interlaced?	couldn't I have been interlacing? couldn't you have been interlacing? couldn't she have been interlacing? couldn't we have been interlacing? couldn't you have been interlacing? couldn't they have been interlacing?