| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] to | 448417 |
|
| 2 | [v-ing] to | 66946 |
|
| 3 | refer to | 10481 |
|
| 4 | referring [prep] | 1373 |
|
| 5 | referring [prep] | 1373 |
|
| 6 | referring to | 1348 |
|
