| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] it have [been] [verb] | 1783 |
|
| 2 | when [pron] have [been] [verb] | 267 |
|
| 3 | when [pers pn] have [been] [verb] | 249 |
|
| 4 | when it have [be] [verb] | 53 |
|
| 5 | when it [verb] [been] [verb] | 53 |
|
| 6 | when it have [been] [verb] | 53 |
|
