| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] [verb] a [noun] | 526 |
|
| 2 | it [be] [v-ing] a [noun] | 246 |
|
| 3 | [pron] [be] taking a [noun] | 131 |
|
| 4 | it [be] take a [noun] | 17 |
|
| 5 | it [be] taking [art] [noun] | 11 |
|
