| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | occur [prep] time [prep] | 19 |
|
| 2 | occur [prep] time [prep] | 16 |
|
| 3 | occur from time [prep] | 14 |
|
| 4 | occur [prep] time to | 14 |
|
| 5 | occur [prep] time to | 14 |
|
| 6 | occur [prep] time [prep] | 5 |
|
