| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be a relief | 123 |
|
| 2 | it [be] a relief | 123 |
|
| 3 | it [was/were] a relief | 92 |
|
| 4 | it was a relief | 91 |
|
| 5 | it [is] a relief | 31 |
|
| 6 | it 's a relief | 17 |
|
| 7 | it is a relief | 14 |
|
