| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be to [be] a [noun sg] | 306 |
|
| 2 | to [be] [vb pp] a [noun sg] | 250 |
|
| 3 | be to [be] [vb pp] a | 92 |
|
| 4 | be to [be] [vb pp] [noun sg] | 60 |
|
