| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] had been [v-ing] for [noun] | 31 |
|
| 2 | [noun prp] had [been] [v-ing] for [noun] | 16 |
|
| 3 | [noun] had [been] [v-ing] for [noun pl] | 14 |
|
| 4 | [noun] had [been] [v-ing] for [noun prp] | 11 |
|
| 5 | [noun pl] had [been] [v-ing] for [noun] | 8 |
|
| 6 | [noun] had [been] [v-ing] for year | 6 |
|
| 7 | [noun sg] had [been] [v-ing] for [noun] | 6 |
|
| 8 | [noun] had [been] [v-ing] for years | 6 |
|
| 9 | [noun] had [been] [v-ing] for [noun sg] | 5 |
|
