| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has [been] [v-ing] [prep] [art] | 349 |
|
| 2 | [conj] has [been] [v-ing] [prep] | 52 |
|
| 3 | [conj] has [been] [prep] [art] | 41 |
|
| 4 | [conj] has [been] [v-ing] [art] | 16 |
|
