| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] has been [v-ing] [prep] | 20 |
|
| 2 | [det] [vb -s] been [v-ing] [prep] | 13 |
|
| 3 | [adj] [vb -s] been happening [prep] | 6 |
|
| 4 | [adj] [vb -s] been [v-ing] for | 6 |
|
| 5 | this [vb -s] been [v-ing] [prep] | 6 |
|
| 6 | this [vb -s] been [v-ing] [prep] | 6 |
|
| 7 | that [vb -s] been [v-ing] [prep] | 5 |
|
| 8 | that [vb -s] been [v-ing] [prep] | 5 |
|
