| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] [prep] [adj] periods of | 43 |
|
| 2 | [vb pp] [prep] [adj] period of | 37 |
|
| 3 | [vb pp] [prep] long period of | 20 |
|
| 4 | [vb pp] [prep] long period of | 20 |
|
| 5 | [vb pp] [prep] [det] period of | 18 |
|
| 6 | [vb pp] [prep] [adj] period of | 18 |
|
| 7 | [vb pp] for [adj] period of | 15 |
|
| 8 | [vb pp] over [adj] period of | 10 |
|
| 9 | [vb pp] in [adj] period of | 10 |
|
| 10 | [vb pp] [prep] this period of | 7 |
|
| 11 | [vb pp] [prep] this period of | 7 |
|
| 12 | [vb pp] [prep] any period of | 6 |
|
| 13 | [vb pp] [prep] any period of | 6 |
|
| 14 | [vb pp] [prep] [num] period of | 5 |
|
| 15 | [vb pp] to [adj] period of | 5 |
|
