| 1. | Base Form (Infinitive): | Hammer |
| 2. | Simple Past: | Hammered |
| 3. | Past Participle: | Hammered |
| 4. | Present Participle: | Hammering |
| 5. | 3rd Person Singular: | Hammers |

Hammer past tense
| Hammered |
| Hammered is the past tense of the word hammer. |
Hammer past participle
| Hammered |
| Hammered is the past participle of the word hammer. |
Hammer verb forms V1 V2 V3 V4
| Infinitive | Past Simple | Past Participle | Present Participle |
|---|---|---|---|
| Hammer | Hammered | Hammered | Hammering |
Conjugation of Hammer
| Simple / Indefinite Present Tense |
| I hammer the nail in the wooden chair. |
| He/She/It hammers the nail in the wooden chair. |
| You/We/They hammer the nail in the wooden chair. |
| Simple Past Tense |
| I hammered the nail in the wooden chair. |
| He/She/It hammered the nail in the wooden chair. |
| You/We/They hammered the nail in the wooden chair. |
| Simple Future Tense |
| I will/shall hammer the nail in the wooden chair. |
| He/She/It will hammer the nail in the wooden chair. |
| You/We/They will/shall hammer the nail in the wooden chair. |
| Present Continuous Tense |
| I am hammering the nail in the wooden chair. |
| He/She/It is hammering the nail in the wooden chair. |
| You/We/They are hammering the nail in the wooden chair. |
| Past Continuous Tense |
| I was hammering the nail in the wooden chair. |
| He/She/It was hammering the nail in the wooden chair. |
| You/We/They were hammering the nail in the wooden chair. |
| Future Continuous Tense |
| I will be hammering the nail in the wooden chair. |
| He/She/It will be hammering the nail in the wooden chair. |
| You/We/They will be hammering the nail in the wooden chair. |
| Present Perfect Tense |
| I have hammered the nail in the wooden chair. |
| He/She/It has hammered the nail in the wooden chair. |
| You/We/They have hammered the nail in the wooden chair. |
| Past Perfect Tense |
| I had hammered the nail in the wooden chair. |
| He/She/It had hammered the nail in the wooden chair. |
| You/We/They had hammered the nail in the wooden chair. |
| Future Perfect Tense |
| I will have hammered the nail in the wooden chair. |
| He/She/It will have hammered the nail in the wooden chair. |
| You/We/They will have hammered the nail in the wooden chair. |
| Present Perfect Continuous Tense |
| I have been hammering the nail in the wooden chair. |
| He/She/It has been hammering the nail in the wooden chair. |
| You/We/They have been hammering the nail in the wooden chair. |
| Past Perfect Continuous Tense |
| I had been hammering the nail in the wooden chair. |
| He/She/It had been hammering the nail in the wooden chair. |
| You/We/They had been hammering the nail in the wooden chair. |
| Future Perfect Continuous Tense |
| I will have been hammering the nail in the wooden chair. |
| He/She/It will have been hammering the nail in the wooden chair. |
| You/We/They will have been hammering the nail in the wooden chair. |