| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [v-ing] for | 1564 |
|
| 2 | have been [v-ing] [to-vb] | 974 |
|
| 3 | been [v-ing] [to-vb] for | 35 |
|
| 4 | have been [to-vb] for | 13 |
|
