| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [prep] a [noun sg] | 187992 |
|
| 2 | [noun] [prep] a time | 1840 |
|
| 3 | [noun] [prep] [noun sg] time | 636 |
|
| 4 | [prep] a [noun sg] time | 86 |
|
