| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [vb infin] [been] [adj] [conj] | 578 |
|
| 2 | [modal v] it [vb infin] [been] [adj] | 26 |
|
| 3 | [modal v] it [vb infin] [adj] [conj] | 9 |
|
| 4 | it [vb infin] [been] [adj] [conj] | 9 |
|
