It can be used in different tenses:
* Present tense: appeal (She appeals to the judge's sense of fairness.)
* Past tense: appealed (He appealed the decision.)
* Present participle: appealing (The idea of a vacation is appealing.)
* Past participle: appealed (They have already appealed the verdict.)
Note: "Appeal" can also be used as a noun, meaning a request for a decision to be reversed or changed.