| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] [prep] [adj] month | 888 |
|
| 2 | [vb pp] [prep] six [noun] | 430 |
|
| 3 | [verb] [prep] six month | 253 |
|
| 4 | [vb pp] [prep] six month | 136 |
|
