| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] have been [vb pp] [prep] | 2519 |
|
| 2 | have been [vb pp] [prep] [v-ing] | 1200 |
|
| 3 | [conj] have [vb pp] [prep] [v-ing] | 57 |
|
| 4 | [conj] have been [vb pp] [v-ing] | 6 |
|
