| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it have been [v-ing] [prep] | 131 |
|
| 2 | [that] have been [v-ing] [prep] | 127 |
|
| 3 | [that] it have been [v-ing] | 26 |
|
| 4 | [that] it have been [prep] | 16 |
|
