| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] [prep] a period [prep] | 193 |
|
| 2 | [noun pl] [prep] a period [prep] | 193 |
|
| 3 | [noun pl] [prep] a period of | 183 |
|
| 4 | [noun pl] [prep] a period of | 183 |
|
| 5 | [noun pl] over a period [prep] | 105 |
|
| 6 | [noun pl] over a period [prep] | 105 |
|
| 7 | [noun pl] for a period [prep] | 46 |
|
| 8 | [noun pl] for a period [prep] | 46 |
|
| 9 | [noun pl] in a period [prep] | 14 |
|
| 10 | [noun pl] in a period [prep] | 14 |
|
| 11 | [noun pl] during a period [prep] | 10 |
|
| 12 | [noun pl] during a period [prep] | 10 |
|
| 13 | [noun pl] after a period [prep] | 6 |
|
| 14 | [noun pl] after a period [prep] | 6 |
|
| 15 | [noun pl] [prep] a period in | 5 |
|
| 16 | [noun pl] [prep] a period in | 5 |
|
| 17 | times [prep] a period [prep] | 5 |
|
