| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [det] [noun] [prep] | 1268 |
|
| 2 | [prep] a [det] [noun] time | 55 |
|
| 3 | [prep] a [noun] time [prep] | 19 |
|
| 4 | a [det] [noun] time [prep] | 7 |
|
