| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [noun] [vb past] be | 1739 |
|
| 2 | [v-ing] [prep] [noun] be | 1234 |
|
| 3 | [v-ing] [prep] [noun] [vb past] | 491 |
|
| 4 | [v-ing] [noun] [vb past] be | 65 |
|
