| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] have been [vb pp] [conj] | 238 |
|
| 2 | have been [vb pp] [conj] [v-ing] | 202 |
|
| 3 | [conj] have been [vb pp] [v-ing] | 6 |
|
