| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | due to [adj] [noun pl] | 361 |
|
| 2 | be due to [adj] | 83 |
|
| 3 | be due to [noun pl] | 32 |
|
| 4 | be to [adj] [noun pl] | 14 |
|
