| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had been used [to-vb] [art] [noun] | 15 |
|
| 2 | had been used [to-vb] [art] [noun sg] | 14 |
|
| 3 | had been used [to-vb] the [noun] | 12 |
|
| 4 | had been used [to-vb] the [noun] | 12 |
|
