| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] from time to time be | 17 |
|
| 2 | [modal v] from time to time be | 17 |
|
| 3 | may from time to time be | 12 |
|
| 4 | may from time to time be | 12 |
|
| 5 | from time to time be [vb pp] | 11 |
|
| 6 | from time to time be [verb] | 11 |
|
