| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [verb] be | 70 |
|
| 2 | it is [vb pp] [be] | 61 |
|
| 3 | it is [verb] [is] | 44 |
|
| 4 | it is [verb] is | 43 |
|
| 5 | it is [verb] [am/are] | 20 |
|
| 6 | it is [verb] are | 20 |
|
| 7 | it is base [be] | 8 |
|
| 8 | it is based [be] | 8 |
|
| 9 | it is [v-ing] [be] | 7 |
|
| 10 | it is do [be] | 7 |
|
| 11 | it is done [be] | 5 |
|
