| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | and [modal v] [adv] [vb infin] | 2268 |
|
| 2 | [vb past] [modal v] [adv] [vb infin] | 59 |
|
| 3 | [vb past] and [modal v] [vb infin] | 42 |
|
| 4 | [vb past] and [modal v] [adv] | 9 |
|
