| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who have be [v-ing] [adv] for | 11 |
|
| 2 | who have been [v-ing] [adv] for | 11 |
|
| 3 | who have be [v-ing] [adv] for | 11 |
|
| 4 | who have be [v-ing] [adv] for | 8 |
|
