| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [adv] been [v-ing] [adv] | 94 |
|
| 2 | have been [v-ing] [adv] to | 75 |
|
| 3 | have [adv] been [v-ing] to | 48 |
|
| 4 | [adv] been [v-ing] [adv] to | 10 |
|
