| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have an important role to play in | 40 |
|
| 2 | [verb] an important role to play in | 40 |
|
| 3 | [vb base] an important role to play in | 18 |
|
| 4 | have an important role to play in | 18 |
|
| 5 | has an important role to play in | 11 |
|
| 6 | [vb -s] an important role to play in | 11 |
|
| 7 | had an important role to play in | 6 |
|
| 8 | [vb past] an important role to play in | 6 |
|
| 9 | an important role to play in [v-ing] | 14 |
|
| 10 | an important role to play in [verb] | 14 |
|
| 11 | an important role to play in [art] | 12 |
|
| 12 | an important role to play in [art] | 12 |
|
| 13 | an important role to play in the | 11 |
|
| 14 | an important role to play in the | 11 |
|
| 15 | an important role to play in [adj] | 11 |
|
| 16 | an important role to play in [det] | 6 |
|
| 17 | an important role to play in [adj] | 5 |
|
| 18 | an important role to play in this | 5 |
|
| 19 | an important role to play in this | 5 |
|
