| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [v-ing] [pron] | 1971 |
|
| 2 | [adv] have been [v-ing] | 200 |
|
| 3 | [adv] been [v-ing] [pron] | 119 |
|
| 4 | [adv] have been [pron] | 77 |
|
