| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | this may be due [prep] | 45 |
|
| 2 | may be due [prep] [adj] | 27 |
|
| 3 | this be due [prep] [adj] | 25 |
|
| 4 | this may be [prep] [adj] | 12 |
|
