| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | six months [prep] [noun] | 328 |
|
| 2 | [prep] six months [prep] | 257 |
|
| 3 | [prep] months [prep] [noun] | 109 |
|
| 4 | [prep] six [prep] [noun] | 47 |
|
| 5 | [prep] six months [noun] | 39 |
|
