| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] it 's | 1070 |
|
| 2 | 's it be | 927 |
|
| 3 | is it be | 354 |
|
| 4 | [is] it is | 147 |
|
| 5 | [is] it was | 33 |
|
| 6 | [is] it being | 16 |
|
| 7 | [is] it been | 12 |
|
