| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [adj] months [prep] | 1400 |
|
| 2 | [prep] a [adj] [prep] | 1143 |
|
| 3 | [prep] a [adj] months | 416 |
|
| 4 | a [adj] months [prep] | 185 |
|
