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