| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [been] [v-ing] | 6932 |
|
| 2 | [been] [v-ing] some | 133 |
|
| 3 | [vb past] [been] some | 109 |
|
| 4 | [vb past] [v-ing] some | 38 |
|
