| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which it have been [v-ing] [prep] | 6 |
|
| 2 | [Wh det] it have been [v-ing] [prep] | 6 |
|
| 3 | [pron] it have been [v-ing] [prep] | 6 |
|
| 4 | which it have been [v-ing] [prep] | 6 |
|
| 5 | [pron] it have been [v-ing] for | 5 |
|
