| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | to be a [noun] | 6116 |
|
| 2 | to be [prep] [noun] | 2363 |
|
| 3 | be [prep] a [noun] | 1284 |
|
| 4 | to be [prep] a | 745 |
|
| 5 | to [prep] a [noun] | 231 |
|
