| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [adv] refer to | 458 |
|
| 2 | [be] [adv] refer to | 458 |
|
| 3 | been [adv] [verb] to | 306 |
|
| 4 | [been] [adv] refer to | 10 |
|
| 5 | been [adv] refer [prep] | 10 |
|
| 6 | been [adv] refer [prep] | 10 |
|
| 7 | been [adv] refer to | 10 |
|
| 8 | been [adv] refer to | 10 |
|
