| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] over a period | 180 |
|
| 2 | [noun sg] [coord] over a | 33 |
|
| 3 | [coord] over a period | 20 |
|
| 4 | [noun sg] [coord] a period | 12 |
|
