| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [be] due to | 135 |
|
| 2 | [prep] [be] due to | 93 |
|
| 3 | [verb] [prep] [be] due | 67 |
|
| 4 | [verb] [prep] [be] to | 61 |
|
