| 1. | Base Form (Infinitive): | Know |
| 2. | Simple Past: | Knew |
| 3. | Past Participle: | Known |
| 4. | Present Participle: | Knowing |
| 5. | 3rd Person Singular: | Knows |

Know past tense
| Knew |
| Knew is the past tense of the word know. |
Know past participle
| Known |
| Known is the past participle of the word Know. |
Know verb forms V1 V2 V3 V4
| Infinitive | Past Simple | Past Participle | Present Participle |
|---|---|---|---|
| Know | Knew | Known | Knowing |
Conjugation of Know
| Simple / Indefinite Present Tense |
| I know you. |
| He/She/It know you. |
| You/We/They know you. |
| Simple Past Tense |
| I knew you. |
| He/She/It knew you. |
| You/We/They knew you. |
| Simple Future Tense |
| I will/shall know you. |
| He/She/It will know you. |
| You/We/They will/shall know you. |
| Present Continuous Tense |
| I am knowing you. |
| He/She/It is knowing you. |
| You/We/They are knowing you. |
| Past Continuous Tense |
| I was knowing you. |
| He/She/It was knowing you. |
| You/We/They were knowing you. |
| Future Continuous Tense |
| I will be knowing you. |
| He/She/It will be knowing you. |
| You/We/They will be knowing you. |
| Present Perfect Tense |
| I have known you. |
| He/She/It has known you. |
| You/We/They have known you. |
| Past Perfect Tense |
| I had known you. |
| He/She/It had known you. |
| You/We/They had known you. |
| Future Perfect Tense |
| I will have known you. |
| He/She/It will have known you. |
| You/We/They will have known you. |
| Present Perfect Continuous Tense |
| I have been knowing you. |
| He/She/It has been knowing you. |
| You/We/They have been knowing you. |
| Past Perfect Continuous Tense |
| I had been knowing you. |
| He/She/It had been knowing you. |
| You/We/They had been knowing you. |
| Future Perfect Continuous Tense |
| I will have been knowing you. |
| He/She/It will have been knowing you. |
| You/We/They will have been knowing you. |