| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [adv] explained [prep] the | 24 |
|
| 2 | be [adv] explained by [art] | 21 |
|
| 3 | be partly explained [prep] [art] | 9 |
|
| 4 | be [adv] explained [prep] a | 5 |
|
