| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it had been [adj] | 487 |
|
| 2 | it had [been] [adj] | 340 |
|
| 3 | it had [been] [num] | 69 |
|
| 4 | it had [been] [det] | 52 |
|
| 5 | it had [been] one | 25 |
|
| 6 | it had [been] one | 25 |
|
| 7 | it had [been] possible | 21 |
|
| 8 | it had [been] possible | 21 |
|
| 9 | it had [been] [adj -er] | 20 |
|
| 10 | it had [been] easy | 19 |
|
| 11 | it had [been] easy | 15 |
|
| 12 | it had [been] necessary | 13 |
|
| 13 | it had [been] necessary | 13 |
|
| 14 | it had [been] impossible | 11 |
|
| 15 | it had [been] such | 11 |
|
| 16 | it had [been] such | 11 |
|
| 17 | it had [been] impossible | 11 |
|
| 18 | it had [been] difficult | 9 |
|
| 19 | it had [been] clear | 9 |
|
| 20 | it had [been] some | 9 |
|
| 21 | it had [been] good | 9 |
|
| 22 | it had [been] clear | 9 |
|
| 23 | it had [been] difficult | 9 |
|
| 24 | it had [been] some | 9 |
|
| 25 | it had [been] that | 8 |
|
| 26 | it had [been] that | 8 |
|
| 27 | it had [been] three | 8 |
|
| 28 | it had [been] three | 8 |
|
| 29 | it had [been] early | 7 |
|
| 30 | it had [been] any | 6 |
|
