| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [verb] be [adv] important [prep] | 9 |
|
| 2 | which [verb] been [adv] important [prep] | 9 |
|
| 3 | which have be [adv] important [prep] | 9 |
|
| 4 | which [verb] be [adv] important [prep] | 9 |
|
