| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [v-ing] [adv] for | 72 |
|
| 2 | been [v-ing] [adv] for [num] | 47 |
|
| 3 | have been [v-ing] for [num] | 27 |
|
| 4 | have been [adv] for [num] | 11 |
|
