| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] been [v-ing] | 6806 |
|
| 2 | [vb base] been [adv] | 5069 |
|
| 3 | been [v-ing] [adv] | 3532 |
|
| 4 | [vb base] [v-ing] [adv] | 1702 |
|
