| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [det] months ' [noun sg] | 16 |
|
| 2 | [prep] a [det] months ' [noun sg] | 16 |
|
| 3 | in a [det] months ' [noun sg] | 12 |
|
| 4 | in a [det] months ' [noun sg] | 12 |
|
