| Present "check" | I | check | |
| Present Continuous "check" | I | am checking | |
| Simple past "check" | I | checked | |
| Past Continuous "check" | I | was checking | |
| Present perfect "check" | I | have checked | |
| Present perfect continuous "check" | I | have been checking | |
| Past perfect "check" | I | had checked | |
| Past perfect continuous "check" | I | had been checking | |
| Future "check" | I | will check | |
| Future continuous "check" | I | will be checking | |
| Future perfect "check" | I | will have checked | |
| Future perfect continuous "check" | I | will have been checking |