| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] have been due to | 12 |
|
| 2 | [det] have been due to | 9 |
|
| 3 | [adj] has been due to | 6 |
|
| 4 | this have been due to | 5 |
|
| 5 | this have been due to | 5 |
|
