| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had been [v-ing] for [adj] year | 44 |
|
| 2 | had be [v-ing] for [adj] years | 44 |
|
| 3 | had be [v-ing] for [num] year | 25 |
|
| 4 | had be [v-ing] for [det] year | 19 |
|
| 5 | had be [v-ing] for many year | 7 |
|
| 6 | had be [v-ing] for many year | 7 |
|
| 7 | had be [v-ing] for some year | 7 |
|
| 8 | had be [v-ing] for some year | 7 |
|
| 9 | had be [v-ing] for two year | 6 |
|
| 10 | had be [v-ing] for two year | 6 |
|
| 11 | had be [v-ing] for several year | 5 |
|
| 12 | had be [v-ing] for several year | 5 |
|
