| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [prep] a [det] [noun] | 248 |
|
| 2 | [verb] [prep] a [det] month | 61 |
|
| 3 | [vb past] [prep] [art] [det] month | 18 |
|
| 4 | [vb past] [prep] a [adj] month | 17 |
|
