| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | prior to the [noun] [prep] | 395 |
|
| 2 | prior to the [noun sg] [prep] | 390 |
|
| 3 | [adj] to the outbreak [prep] | 12 |
|
| 4 | [adj] to the outbreak [prep] | 10 |
|
| 5 | prior to [art] outbreak [prep] | 7 |
|
| 6 | prior to the outbreak [prep] | 7 |
|
| 7 | prior [prep] the outbreak [prep] | 7 |
|
| 8 | prior to the outbreak [prep] | 7 |
|
| 9 | prior [prep] the outbreak [prep] | 7 |
|
| 10 | prior to the outbreak [prep] | 7 |
|
| 11 | prior to the outbreak [prep] | 7 |
|
| 12 | prior to [art] outbreak [prep] | 7 |
|
