| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | once regard as a | 6 |
|
| 2 | once regard [prep] a | 6 |
|
| 3 | once regard as a | 6 |
|
| 4 | once regard [prep] a | 6 |
|
| 5 | once regarded [prep] a | 6 |
|
