| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] play a part in | 33 |
|
| 2 | [modal v] play a part in | 33 |
|
| 3 | [vb mod] play a part in | 33 |
|
| 4 | may play a part in | 10 |
|
| 5 | may play a part in | 10 |
|
| 6 | can play a part in | 9 |
|
| 7 | can play a part in | 9 |
|
