| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could not be [vb pp] to | 90 |
|
| 2 | could not be [verb] to | 90 |
|
| 3 | [modal v] not be attributed to | 37 |
|
| 4 | could [adv] be attributed to | 14 |
|
| 5 | could not be attribute to | 7 |
|
| 6 | could not [be] attributed to | 7 |
|
| 7 | could not be attributed to | 7 |
|
| 8 | could not be attributed [prep] | 7 |
|
| 9 | could not [be] attributed to | 7 |
|
