| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | for long period [prep] | 107 |
|
| 2 | for [adj] period in | 29 |
|
| 3 | for long [noun] in | 24 |
|
| 4 | for [adj] period in | 23 |
|
| 5 | for long period in | 15 |
|
| 6 | [prep] long period in | 14 |
|
| 7 | [prep] long period in | 14 |
|
| 8 | for long period in | 13 |
|
