| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they [be] [v-ing] [adv] at [num] | 7 |
|
| 2 | they [be] [v-ing] [adv prt] at [num] | 7 |
|
| 3 | they [be] [v-ing] in at [num] | 5 |
|
| 4 | they [be] [v-ing] in at [num] | 5 |
|
