| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [noun] over a [adj] period | 16 |
|
| 2 | [verb] [noun sg] over a [adj] period | 12 |
|
| 3 | [verb] [noun] over a [adj] period | 12 |
|
| 4 | [verb] [noun] over a long period | 9 |
|
| 5 | [to-vb] [noun] over a [adj] period | 6 |
|
| 6 | [verb] [noun] over a long period | 5 |
|
