| I | stump up |
| you | stump up |
| he/she/it | stumps up |
| we | stump up |
| you | stump up |
| they | stump up |
| I | have stumped up |
| you | have stumped up |
| he/she/it | has stumped up |
| we | have stumped up |
| you | have stumped up |
| they | have stumped up |
| I | stumped up |
| you | stumped up |
| he/she/it | stumped up |
| we | stumped up |
| you | stumped up |
| they | stumped up |
| I | had stumped up |
| you | had stumped up |
| he/she/it | had stumped up |
| we | had stumped up |
| you | had stumped up |
| they | had stumped up |
| I | will stump up |
| you | will stump up |
| he/she/it | will stump up |
| we | will stump up |
| you | will stump up |
| they | will stump up |
| I | will have stumped up |
| you | will have stumped up |
| he/she/it | will have stumped up |
| we | will have stumped up |
| you | will have stumped up |
| they | will have stumped up |
| I | am stumping up |
| you | are stumping up |
| he/she/it | is stumping up |
| we | are stumping up |
| you | are stumping up |
| they | are stumping up |
| I | have been stumping up |
| you | have been stumping up |
| he/she/it | has been stumping up |
| we | have been stumping up |
| you | have been stumping up |
| they | have been stumping up |
| I | was stumping up |
| you | were stumping up |
| he/she/it | was stumping up |
| we | were stumping up |
| you | were stumping up |
| they | were stumping up |
| I | had been stumping up |
| you | had been stumping up |
| he/she/it | had been stumping up |
| we | had been stumping up |
| you | had been stumping up |
| they | had been stumping up |
| I | will be stumping up |
| you | will be stumping up |
| he/she/it | will be stumping up |
| we | will be stumping up |
| you | will be stumping up |
| they | will be stumping up |
| I | will have been stumping up |
| you | will have been stumping up |
| he/she/it | will have been stumping up |
| we | will have been stumping up |
| you | will have been stumping up |
| they | will have been stumping up |
| I | would stump up |
| you | would stump up |
| he/she/it | would stump up |
| we | would stump up |
| you | would stump up |
| they | would stump up |
| I | would have stumped up |
| you | would have stumped up |
| he/she/it | would have stumped up |
| we | would have stumped up |
| you | would have stumped up |
| they | would have stumped up |
| I | would be stumping up |
| you | would be stumping up |
| he/she/it | would be stumping up |
| we | would be stumping up |
| you | would be stumping up |
| they | would be stumping up |
| I | would have been stumping up |
| you | would have been stumping up |
| he/she/it | would have been stumping up |
| we | would have been stumping up |
| you | would have been stumping up |
| they | would have been stumping up |
| You | stump up |
| we | Let's stump up |
| You | stump up |