| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [adv] been [v-ing] [prep] | 96 |
|
| 2 | they have been [v-ing] [prep] | 52 |
|
| 3 | they have [adv] been [prep] | 29 |
|
| 4 | they have [adv] been [v-ing] | 29 |
|
