| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [vb pp] over a [adj -er] [noun sg] | 12 |
|
| 2 | be [vb pp] over a [adj -er] period | 10 |
|
| 3 | be [vb pp] over a longer [noun sg] | 9 |
|
| 4 | be spread over a [adj -er] [noun sg] | 6 |
|
