| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [vb infin] [been] [prep] | 1261 |
|
| 2 | [modal v] [vb infin] [been] [prep] | 1261 |
|
| 3 | [modal v] [vb infin] [be] at | 142 |
|
| 4 | [modal v] [verb] [been] at | 140 |
|
| 5 | [modal v] [vb infin] [been] at | 139 |
|
