| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [v-ing] [adv] for many | 9 |
|
| 2 | have been [v-ing] [adv] [prep] many | 6 |
|
| 3 | have been [v-ing] [adv prt] [prep] many | 5 |
|
