| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | of a [adj] period [prep] | 41 |
|
| 2 | of a [adj] period [prep] | 41 |
|
| 3 | of a [adj] period [prep] | 38 |
|
| 4 | of a [adj] period of | 27 |
|
| 5 | of a [adj] period of | 27 |
|
| 6 | of a long period [prep] | 11 |
|
| 7 | of a long period [prep] | 10 |
|
| 8 | of a [adj] period in | 6 |
|
| 9 | of a [adj] period in | 6 |
|
