| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] be [adv prt] before | 5 |
|
| 2 | [prep] be [adv prt] before | 5 |
|
| 3 | [prep] [be] [adv prt] before | 5 |
|
| 4 | to [be] [adv prt] before | 5 |
|
