| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] be a [noun sg] | 5944 |
|
| 2 | [prep] be [prep] [noun sg] | 1689 |
|
| 3 | [prep] [prep] a [noun sg] | 1454 |
|
| 4 | be [prep] a [noun sg] | 1255 |
|
| 5 | [prep] be [prep] a | 745 |
|
