| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | as it had [verb] | 186 |
|
| 2 | as it had [vb pp] | 184 |
|
| 3 | as it had done | 40 |
|
| 4 | as it had do | 40 |
|
| 5 | as it had begin | 21 |
|
| 6 | as it had begun | 20 |
|
| 7 | as it had come | 15 |
|
| 8 | as it had come | 15 |
|
| 9 | as it had become | 10 |
|
| 10 | as it had become | 10 |
|
| 11 | as it had seemed | 7 |
|
| 12 | as it had developed | 7 |
|
| 13 | as it had seem | 7 |
|
| 14 | as it had appeared | 7 |
|
| 15 | as it had appear | 7 |
|
| 16 | as it had develop | 7 |
|
| 17 | as it had started | 6 |
|
| 18 | as it had start | 6 |
|
