Present "err" | I | err | |
Present Continuous "err" | I | am erring | |
Simple past "err" | I | erred | |
Past Continuous "err" | I | was erring | |
Present perfect "err" | I | have erred | |
Present perfect continuous "err" | I | have been erring | |
Past perfect "err" | I | had erred | |
Past perfect continuous "err" | I | had been erring | |
Future "err" | I | will err | |
Future continuous "err" | I | will be erring | |
Future perfect "err" | I | will have erred | |
Future perfect continuous "err" | I | will have been erring |