| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [am/are] refer to [art] | 74 |
|
| 2 | we refer to [art] | 27 |
|
| 3 | we [am/are] refer to | 15 |
|
| 4 | we [am/are] to [art] | 9 |
|
