| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] [prep] a period [prep] | 232 |
|
| 2 | [vb pp] [prep] a period of | 215 |
|
| 3 | [vb pp] over a period [prep] | 71 |
|
| 4 | [vb pp] over a period [prep] | 71 |
|
| 5 | [vb pp] for a period [prep] | 45 |
|
| 6 | [vb pp] for a period [prep] | 45 |
|
| 7 | [vb pp] by a period [prep] | 33 |
|
| 8 | [vb pp] by a period [prep] | 33 |
|
| 9 | followed [prep] a period [prep] | 18 |
|
| 10 | [vb pp] within a period [prep] | 17 |
|
| 11 | [vb pp] within a period [prep] | 17 |
|
| 12 | [vb pp] as a period [prep] | 16 |
|
| 13 | [vb pp] as a period [prep] | 16 |
|
| 14 | [vb pp] in a period [prep] | 9 |
|
| 15 | [vb pp] in a period [prep] | 9 |
|
| 16 | [vb pp] through a period [prep] | 8 |
|
| 17 | [vb pp] to a period [prep] | 8 |
|
| 18 | [vb pp] to a period [prep] | 8 |
|
| 19 | [vb pp] through a period [prep] | 8 |
|
| 20 | [vb pp] [prep] a period in | 8 |
|
| 21 | [vb pp] during a period [prep] | 7 |
|
| 22 | [vb pp] during a period [prep] | 7 |
|
| 23 | made [prep] a period [prep] | 7 |
|
| 24 | [vb pp] with a period [prep] | 6 |
|
| 25 | [vb pp] with a period [prep] | 6 |
|
| 26 | gone [prep] a period [prep] | 6 |
|
| 27 | [vb pp] after a period [prep] | 5 |
|
| 28 | [vb pp] after a period [prep] | 5 |
|
| 29 | held [prep] a period [prep] | 5 |
|
