| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] [been] [v-ing] | 6806 |
|
| 2 | [vb base] [been] [adv] | 4416 |
|
| 3 | [been] [v-ing] [adv] | 1919 |
|
| 4 | [vb base] [v-ing] [adv] | 601 |
|
