| 1. | Base Form (Infinitive): | Retain |
| 2. | Simple Past: | Retained |
| 3. | Past Participle: | Retained |
| 4. | Present Participle: | Retaining |
| 5. | 3rd Person Singular: | Retains |

Retain past tense
| Retained |
| Retained is the past tense of the word retain. |
Retain past participle
| Retained |
| Retained is the past participle of the word retain. |
Retain verb forms V1 V2 V3 V4
| Infinitive | Past Simple | Past Participle | Present Participle |
|---|---|---|---|
| Retain | Retained | Retained | Retaining |
Conjugation of Retain
| Simple / Indefinite Present Tense |
| I retain. |
| He/She/It retains. |
| You/We/They retain. |
| Simple Past Tense |
| I retained. |
| He/She/It retained. |
| You/We/They retained. |
| Simple Future Tense |
| I will/shall retain. |
| He/She/It will retain. |
| You/We/They will/shall retain. |
| Present Continuous Tense |
| I am retaining. |
| He/She/It is retaining. |
| You/We/They are retaining. |
| Past Continuous Tense |
| I was retaining. |
| He/She/It was retaining. |
| You/We/They were retaining. |
| Future Continuous Tense |
| I will be retaining. |
| He/She/It will be retaining. |
| You/We/They will be retaining. |
| Present Perfect Tense |
| I have retained. |
| He/She/It has retained. |
| You/We/They have retained. |
| Past Perfect Tense |
| I had retained. |
| He/She/It had retained. |
| You/We/They had retained. |
| Future Perfect Tense |
| I will have retained. |
| He/She/It will have retained. |
| You/We/They will have retained. |
| Present Perfect Continuous Tense |
| I have been retaining. |
| He/She/It has been retaining. |
| You/We/They have been retaining. |
| Past Perfect Continuous Tense |
| I had been retaining. |
| He/She/It had been retaining. |
| You/We/They had been retaining. |
| Future Perfect Continuous Tense |
| I will have been retaining. |
| He/She/It will have been retaining. |
| You/We/They will have been retaining. |
More verb past tense