| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [vb past] [been] [v-ing] | 2089 |
|
| 2 | [prep] [noun] [vb past] [been] | 1594 |
|
| 3 | [prep] [noun] [vb past] [v-ing] | 284 |
|
| 4 | [prep] [noun] [been] [v-ing] | 30 |
|
