| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] refer to [prep] | 34 |
|
| 2 | [verb] refer [prep] [prep] | 34 |
|
| 3 | [verb] refer to [prep] | 34 |
|
| 4 | [verb] referred [prep] [prep] | 27 |
|
| 5 | [verb] refer [prep] as | 25 |
|
| 6 | have refer [prep] [prep] | 24 |
|
| 7 | [vb -s] refer [prep] [prep] | 13 |
|
| 8 | [vb base] refer [prep] [prep] | 11 |
|
| 9 | has refer [prep] [prep] | 8 |
|
| 10 | [vb past] refer [prep] [prep] | 7 |
|
| 11 | have refer [prep] [prep] | 7 |
|
| 12 | [verb] to refer [prep] [prep] | 5 |
|
| 13 | [verb] refer [prep] in | 5 |
|
