| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | long [noun] of | 2644 |
|
| 2 | [adj] period of | 2048 |
|
| 3 | long [noun sg] of | 1805 |
|
| 4 | long period of | 485 |
|
| 5 | long period [prep] | 331 |
|
| 6 | long period [prep] | 331 |
|
| 7 | long period of | 275 |
|
