| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has [been] [v-ing] [det] | 92 |
|
| 2 | has [been] [v-ing] on | 91 |
|
| 3 | [been] [v-ing] on [det] | 53 |
|
| 4 | has [been] on [det] | 7 |
|
