| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | to [be] a [adj] | 4655 |
|
| 2 | to [be] a [adj] | 4393 |
|
| 3 | to [be] [art] key | 39 |
|
| 4 | to [be] [art] key | 39 |
|
| 5 | [prep] [be] a key | 27 |
|
| 6 | [prep] [be] a key | 27 |
|
| 7 | to [be] a key | 26 |
|
| 8 | to [be] a key | 26 |
|
| 9 | to [be] a key | 26 |
|
