| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [adj] [noun] | 283695 |
|
| 2 | [prep] a [adj] months | 416 |
|
| 3 | [prep] [adj] months [noun] | 199 |
|
| 4 | a [adj] months [noun] | 33 |
|
