| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | to be [prep] [adv] a | 12 |
|
| 2 | to be [prep] [adv] a | 11 |
|
| 3 | to be at [adv] a | 10 |
|
| 4 | to be [prep] least a | 10 |
|
