intransitive; transitive
| Infinitive | trial |
|---|---|
| 3rd person singular | trials |
| Past | trialed (only inAmerican) / trialled (only inBritish) |
| Past Participle | trialed (only inAmerican) / trialled (only inBritish) |
| Present Participle | trialing (only inAmerican) / trialling (only inBritish) |