| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | the [noun sg] [prep] a [adj] period | 90 |
|
| 2 | the [noun] for a [adj] period | 40 |
|
| 3 | the [noun] of a [adj] period | 28 |
|
| 4 | the [noun] over a [adj] period | 21 |
|
| 5 | the [noun] [prep] a long period | 21 |
|
| 6 | the [noun pl] [prep] a [adj] period | 17 |
|
| 7 | the end [prep] a [adj] period | 7 |
|
| 8 | the [noun] [prep] a fixed period | 7 |
|
| 9 | the end [prep] a [adj] period | 7 |
|
| 10 | the [noun] [prep] a short period | 7 |
|
| 11 | the [noun] in a [adj] period | 5 |
|
| 12 | the [noun] within a [adj] period | 5 |
|
