| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [v-ing] [adv] [prep] [det] | 658 |
|
| 2 | be [verb] [adv] at [det] | 212 |
|
| 3 | be [v-ing] [adv] at [adj] | 164 |
|
| 4 | [be] [v-ing] [adv] at [det] | 63 |
|
