English Verb - To Know Infinitive - to know Present participle - knowing Past participle - known 1. Present Tense Singular I know You know He/she/it knows Plural We know You know They know 2. Present Progressive Tense Singular I am knowing You are knowing He/she/it is knowing Plural We are knowing You are knowing They are knowing 3. Past Tense Singular I knew You knew He/she/it knew Plural We knew You knew They knew 4. Present Perfect Tense Singular I have known You have known He/she/it has known Plural We have known You have known They have known 5. Present Perfect Progressive Tense Singular I have been knowing You have been knowing He/she/it has been knowing Plural We have been knowing You have been knowing They have been knowing 6. Past Progressive Tense Singular I was knowing You were knowing He/she/it was knowing Plural We were knowing You were knowing They were knowing 7. Past Perfect Tense Singular I had known You had known He/she/it had known Plural We had known You had known They had known 8. Past Perfect Progressive Tense Singular I had been knowing You had been knowing He/she/it had been knowing Plural We had been knowing You had been knowing They had been knowing 9. Future Tense Singular I will know You will know He/she/it will know Plural We will know You will know They will know 10. Future Progressive Tense Singular I will be knowing You will be knowing He/she/it will be knowing Plural We will be knowing You will be knowing They will be knowing 11. Future Perfect Tense Singular I will have known You will have known He/she/it will have known Plural We will have known You will have known They will have known 12. Future Perfect Progressive Tense Singular I will have been knowing You will have been knowing He/she/it will have been knowing Plural We will have been knowing You will have been knowing They will have been knowing