| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] from time to time | 60 |
|
| 2 | [vb base] [prep] time to time | 60 |
|
| 3 | have [prep] time to time | 8 |
|
| 4 | do [prep] time to time | 5 |
|
| 5 | occur [prep] time to time | 5 |
|
