| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] over a [adj] period | 15 |
|
| 2 | or over a [adj] [noun] | 10 |
|
| 3 | or [prep] a [adj] period | 10 |
|
| 4 | or over a [adj] [noun sg] | 10 |
|
| 5 | or [prep] a [adj] period | 10 |
|
| 6 | or over a [adj] period | 6 |
|
| 7 | or over a [adj] period | 5 |
|
| 8 | or over [art] [adj] period | 5 |
|
| 9 | or over [art] [adj] period | 5 |
|
| 10 | or over a [adj] period | 5 |
|
| 11 | or over a [adj] period | 5 |
|
