| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] over a period of | 165 |
|
| 2 | [noun pl] over a period of | 102 |
|
| 3 | [noun prp] over a period of | 12 |
|
| 4 | place over a period of | 9 |
|
| 5 | [n mass] over a period of | 9 |
|
| 6 | place over a period of | 8 |
|
