| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [art] [adj] period of | 907 |
|
| 2 | [prep] [art] long period of | 168 |
|
| 3 | [prep] [art] longest [noun] of | 25 |
|
| 4 | [prep] [art] longest [noun sg] of | 19 |
|
| 5 | [prep] [art] [adj -est] period of | 14 |
|
| 6 | [prep] [art] longest period of | 8 |
|
| 7 | [prep] [art] longest period [prep] | 7 |
|
| 8 | [prep] [art] longest period [prep] | 7 |
|
| 9 | [prep] [art] longest period of | 6 |
|
| 10 | [prep] [art] longest period of | 6 |
|
