| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | that have been [v-ing] for [num] | 6 |
|
| 2 | that have been [v-ing] for [num] | 6 |
|
| 3 | that have been [v-ing] [prep] [num] | 6 |
|
| 4 | that have been [v-ing] [prep] [num] | 6 |
|
