| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] been refer to | 125 |
|
| 2 | have been refer to | 125 |
|
| 3 | having been [verb] to | 108 |
|
| 4 | having [be] refer to | 5 |
|
| 5 | having been refer [prep] | 5 |
|
| 6 | having be refer to | 5 |
|
| 7 | [v-ing] been refer to | 5 |
|
| 8 | having [been] refer to | 5 |
|
| 9 | having been refer [prep] | 5 |
|
| 10 | having been refer to | 5 |
|
