| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] five years ' | 11 |
|
| 2 | [adv] five years [unc] | 11 |
|
| 3 | [adv] five years ' | 11 |
|
| 4 | [adv] five years ['s] | 11 |
|
| 5 | least five years [unc] | 7 |
|
| 6 | least five years [unc] | 7 |
|
