| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [verb] from time to time | 30 |
|
| 2 | [adv] [vb pp] [prep] time to time | 12 |
|
| 3 | still [verb] [prep] time to time | 8 |
|
| 4 | [adv] [vb past] [prep] time to time | 6 |
|
