| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] a key part | 29 |
|
| 2 | play a key part | 18 |
|
| 3 | be a key part | 17 |
|
| 4 | [be] a key part | 17 |
|
| 5 | is a key part | 10 |
|
| 6 | [vb -s] a key part | 10 |
|
| 7 | [is] a key part | 10 |
|
| 8 | [vb infin] a key part | 6 |
|
| 9 | plays a key part | 5 |
|
| 10 | [vb past] a key part | 5 |
|
| 11 | a key part [prep] | 61 |
|
| 12 | a key part [prep] | 61 |
|
| 13 | a key part of | 43 |
|
| 14 | a key part of | 43 |
|
| 15 | a key part in | 18 |
|
| 16 | a key part in | 18 |
|
