| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [v-ing] at [det] | 392 |
|
| 2 | be at [det] time | 238 |
|
| 3 | [v-ing] at [det] time | 87 |
|
| 4 | be [v-ing] [det] time | 57 |
|
