| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [det] [noun sg] over a [adj] period | 9 |
|
| 2 | [det] [noun sg] over a [adj] period | 8 |
|
| 3 | [det] [noun sg] over a period [prep] | 8 |
|
| 4 | [det] [noun sg] over a period [prep] | 8 |
|
| 5 | [det] [noun sg] over a period of | 8 |
|
| 6 | [det] [noun sg] over a period of | 8 |
|
