| Present "ruin" | I | ruin | |
| Present Continuous "ruin" | I | am ruining | |
| Simple past "ruin" | I | ruined | |
| Past Continuous "ruin" | I | was ruining | |
| Present perfect "ruin" | I | have ruined | |
| Present perfect continuous "ruin" | I | have been ruining | |
| Past perfect "ruin" | I | had ruined | |
| Past perfect continuous "ruin" | I | had been ruining | |
| Future "ruin" | I | will ruin | |
| Future continuous "ruin" | I | will be ruining | |
| Future perfect "ruin" | I | will have ruined | |
| Future perfect continuous "ruin" | I | will have been ruining |