| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] have been [v-ing] [prep] | 3341 |
|
| 2 | it have been [v-ing] [prep] | 131 |
|
| 3 | [pron] it have been [prep] | 47 |
|
| 4 | [pron] it have been [v-ing] | 17 |
|
