| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | for [adj] period | 736 |
|
| 2 | for long [noun] | 531 |
|
| 3 | for [adj] period | 492 |
|
| 4 | [prep] long period | 348 |
|
| 5 | [prep] long period | 348 |
|
| 6 | for long period | 312 |
|
| 7 | for long period | 269 |
|
