| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | to three years [unc] [noun sg] for | 5 |
|
| 2 | to three years ' [noun] for | 5 |
|
| 3 | to three years ['s] [noun] for | 5 |
|
| 4 | to three years [unc] [noun] for | 5 |
|
| 5 | to three years ' [noun] for | 5 |
|
