| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] [prep] a [adj] period | 26 |
|
| 2 | [pers pn] for a [adj] period | 22 |
|
| 3 | [pers pn] for a [adj] period | 22 |
|
| 4 | them [prep] a [adj] period | 12 |
|
| 5 | it [prep] a [adj] period | 7 |
|
| 6 | [pers pn] [prep] a long period | 5 |
|
| 7 | [pers pn] [prep] a short period | 5 |
|
