| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | refer to [prep] [art] [num ord] | 23 |
|
| 2 | refer [prep] [prep] [art] [num ord] | 23 |
|
| 3 | refer [prep] [prep] the [num ord] | 21 |
|
| 4 | refer [prep] [prep] the [num ord] | 21 |
|
| 5 | referred [prep] [prep] [art] [num ord] | 17 |
|
| 6 | refer [prep] in [art] [num ord] | 14 |
|
| 7 | refer [prep] as [art] [num ord] | 6 |
|
| 8 | refer [prep] [prep] [art] third | 5 |
|
| 9 | refer [prep] [prep] [art] last | 5 |
|
