| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] six months ' time | 15 |
|
| 2 | [prep] six months ' time | 15 |
|
| 3 | [prep] six months ['s] time | 15 |
|
| 4 | [prep] six months [unc] time | 15 |
|
