| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [verb] [prep] a | 883 |
|
| 2 | it is [vb pp] [prep] a | 788 |
|
| 3 | it is [verb] [prep] a | 720 |
|
| 4 | it is [verb] by a | 201 |
|
| 5 | it is [verb] by a | 201 |
|
| 6 | it is [verb] as a | 194 |
|
| 7 | it is [verb] as a | 194 |
|
| 8 | it is [verb] [prep] an | 164 |
|
| 9 | it is [verb] in a | 119 |
|
| 10 | it is [verb] in a | 119 |
|
| 11 | it is [verb] on a | 89 |
|
| 12 | it is [verb] on a | 89 |
|
| 13 | it is [verb] with a | 66 |
|
| 14 | it is [verb] with a | 66 |
|
| 15 | it is [v-ing] [prep] a | 63 |
|
| 16 | it is based [prep] a | 54 |
|
| 17 | it is base [prep] a | 54 |
|
| 18 | it is [verb] to a | 47 |
|
| 19 | it is [verb] to a | 47 |
|
| 20 | it is [to-vb] [prep] a | 31 |
|
| 21 | it is [verb] for a | 30 |
|
| 22 | it is [verb] for a | 30 |
|
| 23 | it is see [prep] a | 26 |
|
| 24 | it is seen [prep] a | 26 |
|
| 25 | it is [verb] into a | 24 |
|
| 26 | it is [verb] into a | 24 |
|
| 27 | it is [verb] from a | 23 |
|
| 28 | it is [verb] from a | 23 |
|
| 29 | it is [verb] at a | 20 |
|
| 30 | it is [verb] at a | 20 |
|
