| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | the [noun sg] for a [adj] period | 34 |
|
| 2 | the [noun sg] of a [adj] period | 26 |
|
| 3 | the [noun sg] [prep] a long period | 17 |
|
| 4 | the [noun sg] over a [adj] period | 13 |
|
| 5 | the end [prep] a [adj] period | 7 |
|
| 6 | the [noun sg] [prep] a short period | 6 |
|
| 7 | the [noun sg] [prep] a fixed period | 6 |
|
