| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they [modal v] [vb infin] a | 1624 |
|
| 2 | [modal v] [vb infin] for a | 922 |
|
| 3 | they [modal v] [vb infin] for | 461 |
|
| 4 | they [vb infin] for a | 14 |
|
