| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [verb] at a | 2447 |
|
| 2 | [be] [verb] [adv prt] at | 1544 |
|
| 3 | [be] [verb] [adv prt] a | 1347 |
|
| 4 | [verb] [adv prt] at a | 612 |
|
| 5 | [be] [adv prt] at a | 23 |
|
