| 1. | Base Form (Infinitive): | Double |
| 2. | Simple Past: | Doubled |
| 3. | Past Participle: | Doubled |
| 4. | Present Participle: | Doubling |
| 5. | 3rd Person Singular: | Doubles |

Double past tense
| Doubled |
| Doubled is the past tense of the word double. |
Double past participle
| Doubled |
| Doubled is the past participle of the word double. |
Double verb forms V1 V2 V3 V4
| Infinitive | Past Simple | Past Participle | Present Participle |
|---|---|---|---|
| Double | Doubled | Doubled | Doubling |
Conjugation of Double
| Simple / Indefinite Present Tense |
| I double your money within 100 days. |
| He/She/It doubles your money within 100 days. |
| You/We/They double your money within 100 days. |
| Simple Past Tense |
| I doubled your money within 100 days. |
| He/She/It doubled your money within 100 days. |
| You/We/They doubled your money within 100 days. |
| Simple Future Tense |
| I will/shall double your money within 100 days. |
| He/She/It will double your money within 100 days. |
| You/We/They will/shall double your money within 100 days. |
| Present Continuous Tense |
| I am doubling your money within 100 days. |
| He/She/It is doubling your money within 100 days. |
| You/We/They are doubling your money within 100 days. |
| Past Continuous Tense |
| I was doubling your money within 100 days. |
| He/She/It was doubling your money within 100 days. |
| You/We/They were doubling your money within 100 days. |
| Future Continuous Tense |
| I will be doubling your money within 100 days. |
| He/She/It will be doubling your money within 100 days. |
| You/We/They will be doubling your money within 100 days. |
| Present Perfect Tense |
| I have doubled your money within 100 days. |
| He/She/It has doubled your money within 100 days. |
| You/We/They have doubled your money within 100 days. |
| Past Perfect Tense |
| I had doubled your money within 100 days. |
| He/She/It had doubled your money within 100 days. |
| You/We/They had doubled your money within 100 days. |
| Future Perfect Tense |
| I will have doubled your money within 100 days. |
| He/She/It will have doubled your money within 100 days. |
| You/We/They will have doubled your money within 100 days. |
| Present Perfect Continuous Tense |
| I have been doubling your money within 100 days. |
| He/She/It has been doubling your money within 100 days. |
| You/We/They have been doubling your money within 100 days. |
| Past Perfect Continuous Tense |
| I had been doubling your money within 100 days. |
| He/She/It had been doubling your money within 100 days. |
| You/We/They had been doubling your money within 100 days. |
| Future Perfect Continuous Tense |
| I will have been doubling your money within 100 days. |
| He/She/It will have been doubling your money within 100 days. |
| You/We/They will have been doubling your money within 100 days. |