| 1. | Base Form (Infinitive): | Explain |
| 2. | Simple Past: | Explained |
| 3. | Past Participle: | Explained |
| 4. | Present Participle: | Explaining |
| 5. | 3rd Person Singular: | Explains |

Explain past tense
| Explained |
| Explained is the past tense of the word explain. |
Explain past participle
| Explained |
| Explained is the past participle of the word explain. |
Explain verb forms V1 V2 V3 V4
| Infinitive | Past Simple | Past Participle | Present Participle |
|---|---|---|---|
| Explain | Explained | Explained | Explaining |
Conjugation of Explain
| Simple / Indefinite Present Tense |
| I explain the equation. |
| He/She/It explains the equation. |
| You/We/They explain the equation. |
| Simple Past Tense |
| I explained the equation. |
| He/She/It explained the equation. |
| You/We/They explained the equation. |
| Simple Future Tense |
| I will/shall explain the equation. |
| He/She/It will explain the equation. |
| You/We/They will/shall explain the equation. |
| Present Continuous Tense |
| I am explaining the equation. |
| He/She/It is explaining the equation. |
| You/We/They are explaining the equation. |
| Past Continuous Tense |
| I was explaining the equation. |
| He/She/It was explaining the equation. |
| You/We/They were explaining the equation. |
| Future Continuous Tense |
| I will be explaining the equation. |
| He/She/It will be explaining the equation. |
| You/We/They will be explaining the equation. |
| Present Perfect Tense |
| I have explained the equation. |
| He/She/It has explained the equation. |
| You/We/They have explained the equation. |
| Past Perfect Tense |
| I had explained the equation. |
| He/She/It had explained the equation. |
| You/We/They had explained the equation. |
| Future Perfect Tense |
| I will have explained the equation. |
| He/She/It will have explained the equation. |
| You/We/They will have explained the equation. |
| Present Perfect Continuous Tense |
| I have been explaining the equation. |
| He/She/It has been explaining the equation. |
| You/We/They have been explaining the equation. |
| Past Perfect Continuous Tense |
| I had been explaining the equation. |
| He/She/It had been explaining the equation. |
| You/We/They had been explaining the equation. |
| Future Perfect Continuous Tense |
| I will have been explaining the equation. |
| He/She/It will have been explaining the equation. |
| You/We/They will have been explaining the equation. |