| Additional specification | - | ... | ... |
| Present participle | grumbling | Past participle | grumbled |
| I | You | He/She/It | We | You | They | |
|---|---|---|---|---|---|---|
| Present | grumble | grumble | grumbles | grumble | grumble | grumble |
| Past | grumbled | grumbled | grumbled | grumbled | grumbled | grumbled |
| Future | will grumble | will grumble | will grumble | will grumble | will grumble | will grumble |
| Present conditional | would grumble | would grumble | would grumble | would grumble | would grumble | would grumble |
| Present Perfect | have grumbled | have grumbled | has grumbled | have grumbled | have grumbled | have grumbled |
| Past Perfect | had grumbled | had grumbled | had grumbled | had grumbled | had grumbled | had grumbled |
| Future Perfect | will have grumbled | will have grumbled | will have grumbled | will have grumbled | will have grumbled | will have grumbled |
| Past conditional | would have grumbled | would have grumbled | would have grumbled | would have grumbled | would have grumbled | would have grumbled |
| Imperative | - | grumble | - | - | - | - |
grumble - Translation of words, word sequences and short sentences into the languages German, Spanish, French, Italian, Dutch, Portuguese, Swedish