| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | to [noun] [prep] [det] period | 19 |
|
| 2 | to [noun] [prep] this period | 15 |
|
| 3 | to [noun] [prep] this period | 15 |
|
| 4 | to [noun sg] [prep] [adj] period | 9 |
|
| 5 | to [noun] in [adj] period | 8 |
|
| 6 | to [noun] during [adj] period | 6 |
|
