| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [been] [v-ing] | 6932 |
|
| 2 | [vb past] [v-ing] [noun] | 2328 |
|
| 3 | [been] [v-ing] [noun] | 2055 |
|
| 4 | [vb past] [been] [noun] | 1518 |
|
