Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I can contest contest you can contest contest he can contest contest we can contest contest you can contest contest they can contest contest
V-ing form
I can be contest contesting you can be contest contesting he can be contest contesting we can be contest contesting you can be contest contesting they can be contest contesting
Perfect
I can have contest contested you can have contest contested he can have contest contested we can have contest contested you can have contest contested they can have contest contested
V-ing perfect
I can have been contest contesting you can have been contest contesting he can have been contest contesting we can have been contest contesting you can have been contest contesting they can have been contest contesting
Negation
Simple form
I cannot contest contest you cannot contest contest he cannot contest contest we cannot contest contest you cannot contest contest they cannot contest contest
V-ing form
I cannot be contest contesting you cannot be contest contesting he cannot be contest contesting we cannot be contest contesting you cannot be contest contesting they cannot be contest contesting
Perfect
I cannot have contest contested you cannot have contest contested he cannot have contest contested we cannot have contest contested you cannot have contest contested they cannot have contest contested
V-ing perfect
I cannot have been contest contesting you cannot have been contest contesting he cannot have been contest contesting we cannot have been contest contesting you cannot have been contest contesting they cannot have been contest contesting
Interrogative form
Simple form
can I contest contest? can you contest contest? can he contest contest? can we contest contest? can you contest contest? can they contest contest?
V-ing form
can I be contest contesting? can you be contest contesting? can he be contest contesting? can we be contest contesting? can you be contest contesting? can they be contest contesting?
Perfect
can I have contest contested? can you have contest contested? can he have contest contested? can we have contest contested? can you have contest contested? can they have contest contested?
V-ing perfect
can I have been contest contesting? can you have been contest contesting? can he have been contest contesting? can we have been contest contesting? can you have been contest contesting? can they have been contest contesting?
Interro-negative form
Simple form
can I not contest contest? can you not contest contest? can he not contest contest? can we not contest contest? can you not contest contest? can they not contest contest?
V-ing form
can I not be contest contesting? can you not be contest contesting? can he not be contest contesting? can we not be contest contesting? can you not be contest contesting? can they not be contest contesting?
Perfect
can I not have contest contested? can you not have contest contested? can he not have contest contested? can we not have contest contested? can you not have contest contested? can they not have contest contested?
V-ing perfect
can I not have been contest contesting? can you not have been contest contesting? can he not have been contest contesting? can we not have been contest contesting? can you not have been contest contesting? can they not have been contest contesting?