| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | to [be] about 30 | 6 |
|
| 2 | [prep] [be] about 30 | 6 |
|
| 3 | to [be] about 30 | 6 |
|
| 4 | [prep] [be] about 30 | 6 |
|
| 5 | [prep] be about 30 | 6 |
|
