| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [v-ing] at [adv] | 282 |
|
| 2 | [be] [v-ing] at [adv] | 253 |
|
| 3 | [be] [verb] at about | 79 |
|
| 4 | [be] [v-ing] [prep] about | 74 |
|
| 5 | [be] [v-ing] [prep] about | 74 |
|
| 6 | [be] [v-ing] at about | 32 |
|
| 7 | [be] [v-ing] at about | 32 |
|
