| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they have been [adj] [prep] | 56 |
|
| 2 | they have been [v-ing] [prep] | 52 |
|
| 3 | have been [v-ing] [adj] [prep] | 48 |
|
| 4 | they have been [v-ing] [adj] | 17 |
|
