| Present | Past | Future | |
|---|---|---|---|
| I | occur | occurred | will occur |
| you | occur | occurred | will occur |
| he/she | occurs | occurred | will occur |
| we | occur | occurred | will occur |
| you | occur | occurred | will occur |
| they | occur | occurred | will occur |
| I | occur |
| you | occur |
| he/she | occurs |
| we | occur |
| you | occur |
| they | occur |
| I | occurred |
| you | occurred |
| he/she | occurred |
| we | occurred |
| you | occurred |
| they | occurred |
| I | will occur |
| you | will occur |
| he/she | will occur |
| we | will occur |
| you | will occur |
| they | will occur |
| Present | Past | Future | |
|---|---|---|---|
| I | have occurred | had occurred | will have occurred |
| you | have occurred | had occurred | will have occurred |
| he/she | has occurred | had occurred | will have occurred |
| we | have occurred | had occurred | will have occurred |
| you | have occurred | had occurred | will have occurred |
| they | have occurred | had occurred | will have occurred |
| I | have occurred |
| you | have occurred |
| he/she | has occurred |
| we | have occurred |
| you | have occurred |
| they | have occurred |
| I | had occurred |
| you | had occurred |
| he/she | had occurred |
| we | had occurred |
| you | had occurred |
| they | had occurred |
| I | will have occurred |
| you | will have occurred |
| he/she | will have occurred |
| we | will have occurred |
| you | will have occurred |
| they | will have occurred |
| Imperative | |
|---|---|
| I | - |
| you | occur |
| he/she | - |
| we | - |
| you | occur |
| they | - |
| I | - |
| you | occur |
| he/she | - |
| we | - |
| you | occur |
| they | - |
| Present | Past | Future | |
|---|---|---|---|
| I | am occurring | was occurring | will be occurring |
| you | are occurring | were occurring | will be occurring |
| he/she | is occurring | was occurring | will be occurring |
| we | are occurring | were occurring | will be occurring |
| you | are occurring | were occurring | will be occurring |
| they | are occurring | were occurring | will be occurring |
| I | am occurring |
| you | are occurring |
| he/she | is occurring |
| we | are occurring |
| you | are occurring |
| they | are occurring |
| I | was occurring |
| you | were occurring |
| he/she | was occurring |
| we | were occurring |
| you | were occurring |
| they | were occurring |
| I | will be occurring |
| you | will be occurring |
| he/she | will be occurring |
| we | will be occurring |
| you | will be occurring |
| they | will be occurring |
| Present | Past | Future | |
|---|---|---|---|
| I | have been occurring | had been occurring | will have been occurring |
| you | have been occurring | had been occurring | will have been occurring |
| he/she | has been occurring | had been occurring | will have been occurring |
| we | have been occurring | had been occurring | will have been occurring |
| you | have been occurring | had been occurring | will have been occurring |
| they | have been occurring | had been occurring | will have been occurring |
| I | have been occurring |
| you | have been occurring |
| he/she | has been occurring |
| we | have been occurring |
| you | have been occurring |
| they | have been occurring |
| I | had been occurring |
| you | had been occurring |
| he/she | had been occurring |
| we | had been occurring |
| you | had been occurring |
| they | had been occurring |
| I | will have been occurring |
| you | will have been occurring |
| he/she | will have been occurring |
| we | will have been occurring |
| you | will have been occurring |
| they | will have been occurring |