| I | stumble |
| you | stumble |
| he/she/it | stumbles |
| we | stumble |
| you | stumble |
| they | stumble |
| I | have stumbled |
| you | have stumbled |
| he/she/it | has stumbled |
| we | have stumbled |
| you | have stumbled |
| they | have stumbled |
| I | stumbled |
| you | stumbled |
| he/she/it | stumbled |
| we | stumbled |
| you | stumbled |
| they | stumbled |
| I | had stumbled |
| you | had stumbled |
| he/she/it | had stumbled |
| we | had stumbled |
| you | had stumbled |
| they | had stumbled |
| I | will stumble |
| you | will stumble |
| he/she/it | will stumble |
| we | will stumble |
| you | will stumble |
| they | will stumble |
| I | will have stumbled |
| you | will have stumbled |
| he/she/it | will have stumbled |
| we | will have stumbled |
| you | will have stumbled |
| they | will have stumbled |
| I | am stumbling |
| you | are stumbling |
| he/she/it | is stumbling |
| we | are stumbling |
| you | are stumbling |
| they | are stumbling |
| I | have been stumbling |
| you | have been stumbling |
| he/she/it | has been stumbling |
| we | have been stumbling |
| you | have been stumbling |
| they | have been stumbling |
| I | was stumbling |
| you | were stumbling |
| he/she/it | was stumbling |
| we | were stumbling |
| you | were stumbling |
| they | were stumbling |
| I | had been stumbling |
| you | had been stumbling |
| he/she/it | had been stumbling |
| we | had been stumbling |
| you | had been stumbling |
| they | had been stumbling |
| I | will be stumbling |
| you | will be stumbling |
| he/she/it | will be stumbling |
| we | will be stumbling |
| you | will be stumbling |
| they | will be stumbling |
| I | will have been stumbling |
| you | will have been stumbling |
| he/she/it | will have been stumbling |
| we | will have been stumbling |
| you | will have been stumbling |
| they | will have been stumbling |
| I | would stumble |
| you | would stumble |
| he/she/it | would stumble |
| we | would stumble |
| you | would stumble |
| they | would stumble |
| I | would have stumbled |
| you | would have stumbled |
| he/she/it | would have stumbled |
| we | would have stumbled |
| you | would have stumbled |
| they | would have stumbled |
| I | would be stumbling |
| you | would be stumbling |
| he/she/it | would be stumbling |
| we | would be stumbling |
| you | would be stumbling |
| they | would be stumbling |
| I | would have been stumbling |
| you | would have been stumbling |
| he/she/it | would have been stumbling |
| we | would have been stumbling |
| you | would have been stumbling |
| they | would have been stumbling |
| You | stumble |
| we | Let's stumble |
| You | stumble |