| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at which [noun] be [verb] | 114 |
|
| 2 | which [noun] be be [verb] | 78 |
|
| 3 | at [noun] be be [verb] | 22 |
|
| 4 | at which [noun] be be | 5 |
|
