| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [conj] it have been | 677 |
|
| 2 | [noun] [conj] have been [v-ing] | 364 |
|
| 3 | [conj] it have been [v-ing] | 109 |
|
| 4 | [noun] it have been [v-ing] | 39 |
|
