| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] be due [prep] [adj] | 48 |
|
| 2 | [vb mod] be due to [adj] | 47 |
|
| 3 | [vb mod] be due to [adj] | 47 |
|
| 4 | may be due [prep] [adj] | 27 |
|
| 5 | could be due [prep] [adj] | 10 |
|
