| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [vb pp] in [noun prp] [prep] | 1776 |
|
| 2 | be [vb pp] in northern [noun prp] | 16 |
|
| 3 | [vb pp] in northern [noun prp] [prep] | 11 |
|
