| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [not/n't] [vb infin] [been] | 2106 |
|
| 2 | [vb mod] [not/n't] [vb infin] [been] | 2106 |
|
| 3 | might [adv] [vb infin] [been] | 475 |
|
| 4 | might [not/n't] [vb infin] [be] | 143 |
|
| 5 | might [not/n't] [verb] [been] | 141 |
|
| 6 | might [not/n't] [vb infin] [been] | 141 |
|
