| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [v-ing] [prep] [art] | 1987 |
|
| 2 | [conj] have been [v-ing] [prep] | 190 |
|
| 3 | [conj] have been [prep] [art] | 136 |
|
| 4 | [conj] have been [v-ing] [art] | 36 |
|
