| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [verb] [adv prt] at | 1544 |
|
| 2 | [verb] [adv prt] at night | 185 |
|
| 3 | [be] [verb] at night | 94 |
|
| 4 | [be] [adv prt] at night | 10 |
|
