| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [conj] it have been | 413 |
|
| 2 | [conj] it have been [v-ing] | 109 |
|
| 3 | [verb] it have been [v-ing] | 36 |
|
| 4 | [verb] [conj] have been [v-ing] | 21 |
|
