| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] long period | 22 |
|
| 2 | [det] long period | 21 |
|
| 3 | [adj] long period | 20 |
|
| 4 | [adj] longer period | 9 |
|
| 5 | [adj] long periods | 8 |
|
| 6 | such long period | 7 |
|
| 7 | such long period | 7 |
|
| 8 | that long period | 5 |
|
| 9 | that long period | 5 |
|
