| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] refer to | 145 |
|
| 2 | [vb base] referred to | 80 |
|
| 3 | have refer to | 68 |
|
| 4 | [vb base] to refer to | 50 |
|
| 5 | 've refer to | 16 |
|
| 6 | want refer to | 14 |
|
| 7 | [vb base] referring to | 7 |
|
| 8 | need refer to | 5 |
|
