| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] [vb infin] from time to time | 36 |
|
| 2 | will [vb infin] from time to time | 14 |
|
| 3 | [vb mod] vary from time to time | 11 |
|
| 4 | may [vb infin] from time to time | 9 |
|
