| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a long period | 391 |
|
| 2 | [prep] a long period | 391 |
|
| 3 | of a long [noun] | 352 |
|
| 4 | of a long [noun sg] | 339 |
|
| 5 | of a [adj] period | 65 |
|
| 6 | of [art] long period | 15 |
|
| 7 | of [art] long period | 15 |
|
| 8 | of a long period | 12 |
|
| 9 | of a long period | 12 |
|
| 10 | of a long period | 12 |
|
