| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had [been] [v-ing] for [noun pl] | 42 |
|
| 2 | had be [v-ing] for [noun pl] | 42 |
|
| 3 | had been [v-ing] for [noun pl] | 42 |
|
| 4 | had [be] [v-ing] for years | 18 |
|
| 5 | had [be] [v-ing] for days | 5 |
|
