Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I could relax relax you could relax relax he could relax relax we could relax relax you could relax relax they could relax relax
V-ing form
I could be relax relaxing you could be relax relaxing he could be relax relaxing we could be relax relaxing you could be relax relaxing they could be relax relaxing
Perfect
I could have relax relaxed you could have relax relaxed he could have relax relaxed we could have relax relaxed you could have relax relaxed they could have relax relaxed
V-ing perfect
I could have been relax relaxing you could have been relax relaxing he could have been relax relaxing we could have been relax relaxing you could have been relax relaxing they could have been relax relaxing
Negation
Simple form
I couldn't relax relax you couldn't relax relax he couldn't relax relax we couldn't relax relax you couldn't relax relax they couldn't relax relax
V-ing form
I couldn't be relax relaxing you couldn't be relax relaxing he couldn't be relax relaxing we couldn't be relax relaxing you couldn't be relax relaxing they couldn't be relax relaxing
Perfect
I couldn't have relax relaxed you couldn't have relax relaxed he couldn't have relax relaxed we couldn't have relax relaxed you couldn't have relax relaxed they couldn't have relax relaxed
V-ing perfect
I couldn't have been relax relaxing you couldn't have been relax relaxing he couldn't have been relax relaxing we couldn't have been relax relaxing you couldn't have been relax relaxing they couldn't have been relax relaxing
Interrogative form
Simple form
could I relax relax? could you relax relax? could he relax relax? could we relax relax? could you relax relax? could they relax relax?
V-ing form
could I be relax relaxing? could you be relax relaxing? could he be relax relaxing? could we be relax relaxing? could you be relax relaxing? could they be relax relaxing?
Perfect
could I have relax relaxed? could you have relax relaxed? could he have relax relaxed? could we have relax relaxed? could you have relax relaxed? could they have relax relaxed?
V-ing perfect
could I have been relax relaxing? could you have been relax relaxing? could he have been relax relaxing? could we have been relax relaxing? could you have been relax relaxing? could they have been relax relaxing?
Interro-negative form
Simple form
couldn't I relax relax? couldn't you relax relax? couldn't he relax relax? couldn't we relax relax? couldn't you relax relax? couldn't they relax relax?
V-ing form
couldn't I be relax relaxing? couldn't you be relax relaxing? couldn't he be relax relaxing? couldn't we be relax relaxing? couldn't you be relax relaxing? couldn't they be relax relaxing?
Perfect
couldn't I have relax relaxed? couldn't you have relax relaxed? couldn't he have relax relaxed? couldn't we have relax relaxed? couldn't you have relax relaxed? couldn't they have relax relaxed?
V-ing perfect
couldn't I have been relax relaxing? couldn't you have been relax relaxing? couldn't he have been relax relaxing? couldn't we have been relax relaxing? couldn't you have been relax relaxing? couldn't they have been relax relaxing?