Synonyms: quash, wreck, balk, thwart
| Part of speech | verb |
|---|---|
| Pronunciation | /fɔɪ̯l/ |
| Hyphenation | foil |
| Shavian alphabet | 𐑓𐑬𐑤 |
| Deseret alphabet | 𐑁𐐱𐐮𐑊 |
| Indicative mood | |
|---|---|
| Present tense | Past tense |
| (I) foil | (I) foiled |
| (thou) foilest | (thou) foiledst |
| (he) foils, foileth | (he) foiled |
| (we) foil | (we) foiled |
| (you) foil | (you) foiled |
| (they) foil | (they) foiled |
| Subjunctive mood | |
| Present tense | Past tense |
| (I) foil | (I) foiled |
| (thou) foil | (thou) foiled |
| (he) foil | (he) foiled |
| (we) foil | (we) foiled |
| (you) foil | (you) foiled |
| (they) foil | (they) foiled |
| Imperative mood | |
| foil | |
| Participles | |
| Present participle | Past participle |
| foiling | foiled |
| Dutch | verijdelen |
|---|---|
| Esperanto | malsukcesigi |