| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they have been [v-ing] for | 84 |
|
| 2 | they have been [v-ing] [adj] | 78 |
|
| 3 | have been [v-ing] [adj] for | 70 |
|
| 4 | they have been [adj] for | 33 |
|
