497. Misuse of worth as a verb
(X) My bicycle worths $150.
(O) My bicycle is worth $150.
"Worth" isn't a verb, but an adjective.
498. Misuse of able as a verb
(X) The poor man doesn't able to pay.
(O) The poor man isn't able to pay.
"Able" is an adjective, and we can't use it as a verb.
499. Misuse of afraid as a verb
(X) John does not afraid of anybody.
(O) John is not afraid of anybody.
"Afraid" isn't a verb but an adjective, and we generally use it with the verb "to be".