| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it had [verb] | 4638 |
|
| 2 | it had [vb pp] | 4333 |
|
| 3 | it had [to-vb] | 296 |
|
| 4 | it had become | 293 |
|
| 5 | it had become | 291 |
|
| 6 | it had take | 228 |
|
| 7 | it had taken | 223 |
|
| 8 | it had go | 184 |
|
| 9 | it had happen | 171 |
|
| 10 | it had come | 168 |
|
| 11 | it had gone | 163 |
|
| 12 | it had come | 156 |
|
| 13 | it had happened | 155 |
|
| 14 | it had do | 143 |
|
| 15 | it had done | 114 |
|
| 16 | it had seemed | 102 |
|
| 17 | it had seem | 102 |
|
| 18 | it had make | 91 |
|
| 19 | it had begin | 89 |
|
| 20 | it had begun | 87 |
|
| 21 | it had made | 86 |
|
| 22 | it had start | 68 |
|
| 23 | it had have | 66 |
|
| 24 | it had started | 65 |
|
| 25 | it had get | 62 |
|
| 26 | it had lose | 59 |
|
| 27 | it had got | 58 |
|
| 28 | it had lost | 57 |
|
| 29 | it had fallen | 53 |
|
| 30 | it had fall | 53 |
|
