| Present "ensure" | I | ensure | |
| Present Continuous "ensure" | I | am ensuring | |
| Simple past "ensure" | I | ensured | |
| Past Continuous "ensure" | I | was ensuring | |
| Present perfect "ensure" | I | have ensured | |
| Present perfect continuous "ensure" | I | have been ensuring | |
| Past perfect "ensure" | I | had ensured | |
| Past perfect continuous "ensure" | I | had been ensuring | |
| Future "ensure" | I | will ensure | |
| Future continuous "ensure" | I | will be ensuring | |
| Future perfect "ensure" | I | will have ensured | |
| Future perfect continuous "ensure" | I | will have been ensuring |