| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have be [v-ing] at | 446 |
|
| 2 | be [v-ing] at [num] | 221 |
|
| 3 | have be [v-ing] [num] | 102 |
|
| 4 | have be at [num] | 18 |
|
