| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] had been [v-ing] [prep] years | 9 |
|
| 2 | [noun] had been [v-ing] [prep] years | 6 |
|
| 3 | [pers pn] had been [v-ing] [prep] years | 5 |
|
| 4 | had been [v-ing] [adv] [prep] years | 12 |
|
| 5 | had been [v-ing] [adv prt] [prep] years | 6 |
|
| 6 | had been [v-ing] [adv] [prep] years | 6 |
|
| 7 | had been [v-ing] [prep] [adj] years | 45 |
|
| 8 | had been [v-ing] [prep] [num] years | 25 |
|
| 9 | had been [v-ing] [prep] [det] years | 19 |
|
| 10 | had been [v-ing] [prep] some years | 7 |
|
| 11 | had been [v-ing] [prep] some years | 7 |
|
| 12 | had been [v-ing] [prep] many years | 7 |
|
| 13 | had been [v-ing] [prep] many years | 7 |
|
| 14 | had been [v-ing] [prep] two years | 6 |
|
| 15 | had been [v-ing] [prep] two years | 6 |
|
| 16 | had been [v-ing] [prep] several years | 5 |
|
| 17 | had been [v-ing] [prep] several years | 5 |
|
