English verb conjugation
COULD LYSE

Regular verb: lyse - lysed - lysed

Affirmation

Simple form	V-ing form
I could lyse you could lyse he could lyse we could lyse you could lyse they could lyse	I could be lysing you could be lysing he could be lysing we could be lysing you could be lysing they could be lysing
Perfect	V-ing perfect
I could have lysed you could have lysed he could have lysed we could have lysed you could have lysed they could have lysed	I could have been lysing you could have been lysing he could have been lysing we could have been lysing you could have been lysing they could have been lysing

Negation

Simple form	V-ing form
I couldn't lyse you couldn't lyse he couldn't lyse we couldn't lyse you couldn't lyse they couldn't lyse	I couldn't be lysing you couldn't be lysing he couldn't be lysing we couldn't be lysing you couldn't be lysing they couldn't be lysing
Perfect	V-ing perfect
I couldn't have lysed you couldn't have lysed he couldn't have lysed we couldn't have lysed you couldn't have lysed they couldn't have lysed	I couldn't have been lysing you couldn't have been lysing he couldn't have been lysing we couldn't have been lysing you couldn't have been lysing they couldn't have been lysing

Interrogative form

Simple form	V-ing form
could I lyse? could you lyse? could he lyse? could we lyse? could you lyse? could they lyse?	could I be lysing? could you be lysing? could he be lysing? could we be lysing? could you be lysing? could they be lysing?
Perfect	V-ing perfect
could I have lysed? could you have lysed? could he have lysed? could we have lysed? could you have lysed? could they have lysed?	could I have been lysing? could you have been lysing? could he have been lysing? could we have been lysing? could you have been lysing? could they have been lysing?

Interro-negative form

Simple form	V-ing form
couldn't I lyse? couldn't you lyse? couldn't he lyse? couldn't we lyse? couldn't you lyse? couldn't they lyse?	couldn't I be lysing? couldn't you be lysing? couldn't he be lysing? couldn't we be lysing? couldn't you be lysing? couldn't they be lysing?
Perfect	V-ing perfect
couldn't I have lysed? couldn't you have lysed? couldn't he have lysed? couldn't we have lysed? couldn't you have lysed? couldn't they have lysed?	couldn't I have been lysing? couldn't you have been lysing? couldn't he have been lysing? couldn't we have been lysing? couldn't you have been lysing? couldn't they have been lysing?