| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had been [verb] for [adj] [noun] | 319 |
|
| 2 | had been [vb pp] for [adj] [noun] | 194 |
|
| 3 | [verb] been used for [adj] [noun] | 44 |
|
| 4 | have been used for [adj] [noun] | 44 |
|
| 5 | had been used [prep] [adj] [noun] | 24 |
|
| 6 | had been use for [adj] [noun] | 13 |
|
| 7 | had [been] used for [adj] [noun] | 12 |
|
| 8 | had [be] used for [adj] [noun] | 12 |
|
| 9 | had be used for [adj] [noun] | 12 |
|
| 10 | [vb past] been used for [adj] [noun] | 12 |
|
