| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a survey [prep] [noun pl] ' | 9 |
|
| 2 | a survey of [noun pl] ' | 9 |
|
| 3 | a survey [prep] [noun pl] ' | 9 |
|
| 4 | a survey [prep] [noun pl] ' | 9 |
|
| 5 | a survey of [noun pl] ' | 9 |
|
