| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | survey [be] carried [adv prt] [prep] [noun sg] | 7 |
|
| 2 | survey be carry [adv prt] [prep] [noun sg] | 7 |
|
| 3 | survey [be] carry out [prep] [noun sg] | 7 |
|
