| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [adj] months ['s] [noun] | 219 |
|
| 2 | [prep] six [noun] ['s] [noun] | 72 |
|
| 3 | [prep] six [noun pl] ['s] [noun] | 68 |
|
| 4 | [prep] six month ['s] [noun] | 44 |
|
| 5 | [prep] six months [unc] [noun] | 42 |
|
