| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [vb infin] [vb pp] at any time | 8 |
|
| 2 | [modal v] [vb infin] [vb pp] at any time | 8 |
|
| 3 | [vb mod] [vb infin] [vb pp] [prep] any time | 8 |
|
| 4 | [modal v] [vb infin] [vb pp] [prep] any time | 8 |
|
| 5 | [modal v] have [vb pp] [prep] any time | 8 |
|
| 6 | could [vb infin] [vb pp] [prep] any time | 7 |
|
| 7 | could [vb infin] [vb pp] [prep] any time | 7 |
|
| 8 | [modal v] [vb infin] happened [prep] any time | 5 |
|
