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