| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [adj] [prep] a first | 12 |
|
| 2 | [be] [adj] [prep] a first | 11 |
|
| 3 | [be] [adj] as a first | 5 |
|
| 4 | is [adj] [prep] a first | 5 |
|
| 5 | [is] [adj] [prep] a first | 5 |
|
