| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had been [v-ing] [adv] for [noun pl] | 22 |
|
| 2 | had been [v-ing] [adv] [prep] [noun pl] | 14 |
|
| 3 | had been [v-ing] [adv] [prep] years | 12 |
|
| 4 | had been [v-ing] [adv prt] [prep] [noun pl] | 11 |
|
| 5 | had been [v-ing] on [prep] [noun pl] | 8 |
|
| 6 | had been [v-ing] on [prep] [noun pl] | 8 |
|
| 7 | had been going [adv] [prep] [noun pl] | 7 |
|
