| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | can be [vb pp] at any time | 54 |
|
| 2 | may be [vb pp] at any time | 26 |
|
| 3 | could be [vb pp] at any time | 14 |
|
| 4 | [vb mod] be made at any time | 7 |
|
| 5 | [vb mod] be changed at any time | 6 |
|
