| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] to be in | 139 |
|
| 2 | [vb mod] to be in | 139 |
|
| 3 | [modal v] to be in | 139 |
|
| 4 | used to be in | 92 |
|
| 5 | used to be in | 92 |
|
| 6 | ought to be in | 46 |
|
| 7 | ought to be in | 46 |
|
