| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a [adj] period | 2494 |
|
| 2 | a [adj] period | 2283 |
|
| 3 | a fixed [noun] | 936 |
|
| 4 | a fixed [noun sg] | 932 |
|
| 5 | [art] fixed period | 61 |
|
| 6 | [art] fixed period | 61 |
|
| 7 | a fixed period | 58 |
|
| 8 | a fixed period | 58 |
|
| 9 | a fixed period | 58 |
|
