| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [v-ing] at the top | 28 |
|
| 2 | was [v-ing] at [art] top | 14 |
|
| 3 | be standing at [art] top | 10 |
|
| 4 | be [v-ing] at [art] top | 5 |
|
