| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | to [noun] [prep] a [adj] period | 17 |
|
| 2 | to [noun] for a [adj] period | 8 |
|
| 3 | to [noun sg] [prep] a [adj] period | 7 |
|
| 4 | to [noun prp] [prep] a [adj] period | 6 |
|
| 5 | to [noun] over a [adj] period | 5 |
|
| 6 | to [noun] [prep] a long period | 5 |
|
