| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | before they [verb] the | 181 |
|
| 2 | before they [vb past] the | 109 |
|
| 3 | before they [vb base] the | 72 |
|
| 4 | before they reach the | 42 |
|
| 5 | before they reached the | 28 |
|
| 6 | before they leave the | 17 |
|
| 7 | before they reach the | 14 |
|
| 8 | before they left the | 13 |
|
| 9 | before they get the | 8 |
|
| 10 | before they enter the | 7 |
|
| 11 | before they get the | 5 |
|
| 12 | before they hear the | 5 |
|
| 13 | before they find the | 5 |
|
| 14 | before they take the | 5 |
|
| 15 | before they have the | 5 |
|
| 16 | before they heard the | 5 |
|
| 17 | before they hit the | 5 |
|
| 18 | before they hit the | 5 |
|
