| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [adv] [prep] this period [prep] | 5 |
|
| 2 | [adv] [verb] [prep] this period [prep] | 7 |
|
| 3 | [adv] [vb pp] [prep] this period [prep] | 5 |
|
| 4 | [adv] [prep] this period [prep] [noun] | 5 |
|
