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