| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [adv] [v-ing] been | 38 |
|
| 2 | at [adv] [verb] been | 29 |
|
| 3 | at [adv] [v-ing] [be] | 9 |
|
| 4 | at [adv] [v-ing] [been] | 9 |
|
| 5 | at [adv] [v-ing] be | 9 |
|
