| 1. | Base Form (Infinitive): | Gain |
| 2. | Simple Past: | Gained |
| 3. | Past Participle: | Gained |
| 4. | Present Participle: | Gaining |
| 5. | 3rd Person Singular: | Gains |

Gain past tense
| Gained |
| Gained is the past tense of the word gain. |
Gain past participle
| Gained |
| Gained is the past participle of the word gain. |
Gain verb forms V1 V2 V3 V4
| Infinitive | Past Simple | Past Participle | Present Participle |
|---|---|---|---|
| Gain | Gained | Gained | Gaining |
Conjugation of Gain
| Simple / Indefinite Present Tense |
| I gain weight. |
| He/She/It gains weight. |
| You/We/They gain weight. |
| Simple Past Tense |
| I gained weight. |
| He/She/It gained weight. |
| You/We/They gained weight. |
| Simple Future Tense |
| I will/shall gain weight. |
| He/She/It will gain weight. |
| You/We/They will/shallgain weight. |
| Present Continuous Tense |
| I am gaining weight. |
| He/She/It is gaining weight. |
| You/We/They are gaining weight. |
| Past Continuous Tense |
| I was gaining weight. |
| He/She/It was gaining weight. |
| You/We/They were gaining weight. |
| Future Continuous Tense |
| I will begaining weight. |
| He/She/It will be gaining weight. |
| You/We/They will be gaining weight. |
| Present Perfect Tense |
| I have gained weight. |
| He/She/It has gained weight. |
| You/We/They have gained weight. |
| Past Perfect Tense |
| I had gained weight. |
| He/She/It had gained weight. |
| You/We/They had gained weight. |
| Future Perfect Tense |
| I will have gained weight. |
| He/She/It will have gained weight. |
| You/We/They will have gained weight. |
| Present Perfect Continuous Tense |
| I have been gaining weight. |
| He/She/It has been gaining weight. |
| You/We/They have been gaining weight. |
| Past Perfect Continuous Tense |
| I had been gaining weight. |
| He/She/It had been gaining weight. |
| You/We/They had been gaining weight. |
| Future Perfect Continuous Tense |
| I will have been gaining weight. |
| He/She/It will have been gaining weight. |
| You/We/They will have been gaining weight. |