| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] [noun] [prep] a [adj] period | 79 |
|
| 2 | [noun] [noun sg] [prep] a [adj] period | 64 |
|
| 3 | [noun] [noun] over a [adj] period | 42 |
|
| 4 | [noun] [noun] for a [adj] period | 36 |
|
| 5 | [noun] [noun pl] [prep] a [adj] period | 25 |
|
| 6 | [noun] [noun] [prep] a long period | 18 |
|
| 7 | [noun prp] [noun] [prep] a [adj] period | 8 |
|
| 8 | [noun pl] [noun] [prep] a [adj] period | 5 |
|
| 9 | [noun] [noun] [prep] a short period | 5 |
|
