| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] an expensive | 28 |
|
| 2 | it be an expensive | 28 |
|
| 3 | it [is] an expensive | 21 |
|
| 4 | it 's an expensive | 16 |
|
| 5 | it was an expensive | 7 |
|
| 6 | it [was/were] an expensive | 7 |
|
| 7 | it is an expensive | 5 |
|
| 8 | it an expensive [noun sg] | 5 |
|
| 9 | it an expensive [noun] | 5 |
|
