| 1. | Base Form (Infinitive): | Interest |
| 2. | Simple Past: | Interested |
| 3. | Past Participle: | Interested |
| 4. | Present Participle: | Interesting |
| 5. | 3rd Person Singular: | Interests |

Interest past tense
| Interested |
| Interested is the past tense of the word interest. |
Interest past participle
| Interested |
| Interested is the past participle of the word interest. |
Interest verb forms V1 V2 V3 V4
| Infinitive | Past Simple | Past Participle | Present Participle |
|---|---|---|---|
| Interest | Interested | Interested | Interesting |
Conjugation of Interest
| Simple / Indefinite Present Tense |
| I interest travel. |
| He/She/It interests travel. |
| You/We/They interest travel. |
| Simple Past Tense |
| I interested travel. |
| He/She/It interested travel. |
| You/We/They interested travel. |
| Simple Future Tense |
| I will/shall interest travel. |
| He/She/It will interest travel. |
| You/We/They will/shall interest travel. |
| Present Continuous Tense |
| I am interesting travel. |
| He/She/It is interesting travel. |
| You/We/They are interesting travel. |
| Past Continuous Tense |
| I was interesting travel. |
| He/She/It was interesting travel. |
| You/We/They were interesting travel. |
| Future Continuous Tense |
| I will be interesting travel. |
| He/She/It will be interesting travel. |
| You/We/They will be interesting travel. |
| Present Perfect Tense |
| I have interested travel. |
| He/She/It has interested travel. |
| You/We/They have interested travel. |
| Past Perfect Tense |
| I had interested travel. |
| He/She/It had interested travel. |
| You/We/They had interested travel. |
| Future Perfect Tense |
| I will have interested travel. |
| He/She/It will have interested travel. |
| You/We/They will have interested travel. |
| Present Perfect Continuous Tense |
| I have been interesting travel. |
| He/She/It has been interesting travel. |
| You/We/They have been interesting travel. |
| Past Perfect Continuous Tense |
| I had been interesting travel. |
| He/She/It had been interesting travel. |
| You/We/They had been interesting travel. |
| Future Perfect Continuous Tense |
| I will have been interesting travel. |
| He/She/It will have been interesting travel. |
| You/We/They will have been interesting travel. |