| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] not be measured | 47 |
|
| 2 | can not be measured | 35 |
|
| 3 | can not be measured | 35 |
|
| 4 | could not be measured | 5 |
|
| 5 | could not be measured | 5 |
|
