| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [adj] months | 416 |
|
| 2 | [prep] [adj] months ' | 242 |
|
| 3 | a [adj] months ' | 34 |
|
| 4 | [prep] a [adj] ' | 11 |
|
