| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [verb] to | 77926 |
|
| 2 | be [v-ing] to | 14228 |
|
| 3 | be refer to | 1864 |
|
| 4 | be referring [prep] | 352 |
|
| 5 | be referring [prep] | 352 |
|
| 6 | [be] referring to | 346 |
|
| 7 | be referring to | 346 |
|
