| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [vb infin] a part in | 35 |
|
| 2 | [modal v] play a part in | 33 |
|
| 3 | [modal v] [vb infin] play a part | 11 |
|
| 4 | [vb infin] play a part in | 9 |
|
