| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] this [adj] period | 155 |
|
| 2 | [prep] this [adj] period | 155 |
|
| 3 | over this [adj] [noun] | 63 |
|
| 4 | over [det] [adj] period | 18 |
|
| 5 | over [adj] [adj] period | 18 |
|
| 6 | over this [adj] period | 10 |
|
| 7 | over this [adj] period | 10 |
|
