| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [v-ing] [noun] [prep] a [adj] | 1495 |
|
| 2 | [noun] [prep] a [adj] period | 766 |
|
| 3 | [v-ing] [prep] a [adj] period | 39 |
|
| 4 | [v-ing] [noun] [prep] a period | 9 |
|
| 5 | [v-ing] [noun] [prep] [adj] period | 7 |
|
