| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [v-ing] [det] | 762 |
|
| 2 | [adv] have been [v-ing] | 280 |
|
| 3 | [adv] have been [det] | 181 |
|
| 4 | [adv] been [v-ing] [det] | 72 |
|
