| Present | Past | Future | |
|---|---|---|---|
| I | warn | warned | will warn |
| you | warn | warned | will warn |
| he/she | warns | warned | will warn |
| we | warn | warned | will warn |
| you | warn | warned | will warn |
| they | warn | warned | will warn |
| I | warn |
| you | warn |
| he/she | warns |
| we | warn |
| you | warn |
| they | warn |
| I | warned |
| you | warned |
| he/she | warned |
| we | warned |
| you | warned |
| they | warned |
| I | will warn |
| you | will warn |
| he/she | will warn |
| we | will warn |
| you | will warn |
| they | will warn |
| Present | Past | Future | |
|---|---|---|---|
| I | have warned | had warned | will have warned |
| you | have warned | had warned | will have warned |
| he/she | has warned | had warned | will have warned |
| we | have warned | had warned | will have warned |
| you | have warned | had warned | will have warned |
| they | have warned | had warned | will have warned |
| I | have warned |
| you | have warned |
| he/she | has warned |
| we | have warned |
| you | have warned |
| they | have warned |
| I | had warned |
| you | had warned |
| he/she | had warned |
| we | had warned |
| you | had warned |
| they | had warned |
| I | will have warned |
| you | will have warned |
| he/she | will have warned |
| we | will have warned |
| you | will have warned |
| they | will have warned |
| Imperative | |
|---|---|
| I | - |
| you | warn |
| he/she | - |
| we | - |
| you | warn |
| they | - |
| I | - |
| you | warn |
| he/she | - |
| we | - |
| you | warn |
| they | - |
| Present | Past | Future | |
|---|---|---|---|
| I | am warning | was warning | will be warning |
| you | are warning | were warning | will be warning |
| he/she | is warning | was warning | will be warning |
| we | are warning | were warning | will be warning |
| you | are warning | were warning | will be warning |
| they | are warning | were warning | will be warning |
| I | am warning |
| you | are warning |
| he/she | is warning |
| we | are warning |
| you | are warning |
| they | are warning |
| I | was warning |
| you | were warning |
| he/she | was warning |
| we | were warning |
| you | were warning |
| they | were warning |
| I | will be warning |
| you | will be warning |
| he/she | will be warning |
| we | will be warning |
| you | will be warning |
| they | will be warning |
| Present | Past | Future | |
|---|---|---|---|
| I | have been warning | had been warning | will have been warning |
| you | have been warning | had been warning | will have been warning |
| he/she | has been warning | had been warning | will have been warning |
| we | have been warning | had been warning | will have been warning |
| you | have been warning | had been warning | will have been warning |
| they | have been warning | had been warning | will have been warning |
| I | have been warning |
| you | have been warning |
| he/she | has been warning |
| we | have been warning |
| you | have been warning |
| they | have been warning |
| I | had been warning |
| you | had been warning |
| he/she | had been warning |
| we | had been warning |
| you | had been warning |
| they | had been warning |
| I | will have been warning |
| you | will have been warning |
| he/she | will have been warning |
| we | will have been warning |
| you | will have been warning |
| they | will have been warning |