| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [v-ing] [prep] [art] | 2210 |
|
| 2 | has been [v-ing] [prep] | 1064 |
|
| 3 | has been [prep] [art] | 763 |
|
| 4 | has been [v-ing] [art] | 500 |
|
