| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | vary from time [prep] time | 11 |
|
| 2 | vary from time [prep] time | 11 |
|
| 3 | vary [prep] time to time | 11 |
|
| 4 | vary [prep] time [prep] time | 11 |
|
| 5 | vary [prep] time [prep] time | 11 |
|
| 6 | vary [prep] time to time | 11 |
|
| 7 | vary [prep] time [prep] time | 11 |
|
