| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [prep] the long period [prep] | 9 |
|
| 2 | [noun] [prep] the long period of | 7 |
|
| 3 | [noun sg] [prep] the long period [prep] | 6 |
|
| 4 | [noun] [prep] the long period [prep] | 5 |
|
