| Present "concur" | I | concur | |
| Present Continuous "concur" | I | am concurring | |
| Simple past "concur" | I | concurred | |
| Past Continuous "concur" | I | was concurring | |
| Present perfect "concur" | I | have concurred | |
| Present perfect continuous "concur" | I | have been concurring | |
| Past perfect "concur" | I | had concurred | |
| Past perfect continuous "concur" | I | had been concurring | |
| Future "concur" | I | will concur | |
| Future continuous "concur" | I | will be concurring | |
| Future perfect "concur" | I | will have concurred | |
| Future perfect continuous "concur" | I | will have been concurring |