| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | that have [be] [v-ing] at | 8 |
|
| 2 | that have be [v-ing] at | 8 |
|
| 3 | that have [been] [v-ing] at | 8 |
|
| 4 | that have [be] [v-ing] at | 8 |
|
| 5 | that have been [v-ing] at | 8 |
|
