| Present "justify" | I | justify | |
| Present Continuous "justify" | I | am justifying | |
| Simple past "justify" | I | justified | |
| Past Continuous "justify" | I | was justifying | |
| Present perfect "justify" | I | have justified | |
| Present perfect continuous "justify" | I | have been justifying | |
| Past perfect "justify" | I | had justified | |
| Past perfect continuous "justify" | I | had been justifying | |
| Future "justify" | I | will justify | |
| Future continuous "justify" | I | will be justifying | |
| Future perfect "justify" | I | will have justified | |
| Future perfect continuous "justify" | I | will have been justifying |