| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it have been a long time | 54 |
|
| 2 | it 's [been] a long time | 28 |
|
| 3 | it had [been] a long time | 17 |
|
| 4 | it has [been] a long time | 9 |
|
