| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] been [v-ing] [adv] | 1040 |
|
| 2 | [Wh pn] [vb base] been [v-ing] | 219 |
|
| 3 | [Wh pn] [vb base] been [adv] | 147 |
|
| 4 | [Wh pn] [vb base] [v-ing] [adv] | 11 |
|
