| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be show [prep] be essential | 5 |
|
| 2 | [be] show [prep] be essential | 5 |
|
| 3 | show [prep] be essential [prep] | 5 |
|
| 4 | show [prep] be essential [prep] | 5 |
|
