| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] be attributed to | 217 |
|
| 2 | can be attribute to | 121 |
|
| 3 | could be attribute to | 32 |
|
| 4 | may be attribute to | 29 |
|
| 5 | should be attribute to | 12 |
|
| 6 | must be attribute to | 9 |
|
| 7 | might be attribute to | 8 |
|
| 8 | will be attribute to | 5 |
|
