| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] unable [to-vb] at [art] | 6 |
|
| 2 | be unable [to-vb] at [art] | 6 |
|
| 3 | unable [to-vb] at [art] [noun] | 8 |
|
| 4 | unable [to-vb] at [art] [noun sg] | 7 |
|
