| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [adj] [unc] | 1030 |
|
| 2 | [prep] a [adj] months | 416 |
|
| 3 | [prep] [adj] months [unc] | 254 |
|
| 4 | a [adj] months [unc] | 36 |
|
