| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be referred to [prep] | 673 |
|
| 2 | be referred [prep] as | 364 |
|
| 3 | be referred [prep] in | 228 |
|
| 4 | is referred [prep] [prep] | 195 |
|
| 5 | are referred [prep] [prep] | 184 |
|
| 6 | be referred [prep] [prep] | 124 |
|
| 7 | be referred [prep] by | 64 |
|
| 8 | was referred [prep] [prep] | 56 |
|
| 9 | been referred [prep] [prep] | 48 |
|
| 10 | were referred [prep] [prep] | 41 |
|
| 11 | being referred [prep] [prep] | 21 |
|
| 12 | be referred [prep] for | 5 |
|
