| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [to-vb] about [noun sg] | 22 |
|
| 2 | be to know about [noun sg] | 11 |
|
| 3 | is [to-vb] about [noun sg] | 9 |
|
| 4 | was [to-vb] about [noun sg] | 7 |
|
