| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [to-vb] [noun] [prep] a [adj] | 1389 |
|
| 2 | [noun] [prep] a [adj] period | 704 |
|
| 3 | [to-vb] [prep] a [adj] period | 27 |
|
| 4 | [to-vb] [noun] [prep] a period | 8 |
|
