| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [modal v] of [been] | 106 |
|
| 2 | [pron] should of [been] | 24 |
|
| 3 | it should [prep] [been] | 8 |
|
| 4 | it should of [be] | 8 |
|
| 5 | it should of [been] | 8 |
|
| 6 | it should [prep] [been] | 8 |
|
