| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [vb pp] [prep] an | 1648 |
|
| 2 | is [verb] by an | 438 |
|
| 3 | is [verb] as an | 427 |
|
| 4 | is [verb] in an | 205 |
|
| 5 | is [v-ing] [prep] an | 182 |
|
| 6 | is [verb] to an | 145 |
|
| 7 | is [verb] on an | 144 |
|
| 8 | is [verb] with an | 140 |
|
| 9 | is based [prep] an | 91 |
|
| 10 | is base [prep] an | 91 |
|
| 11 | is [verb] for an | 84 |
|
| 12 | is see [prep] an | 70 |
|
| 13 | is seen [prep] an | 70 |
|
| 14 | is [verb] from an | 52 |
|
| 15 | is used [prep] an | 51 |
|
| 16 | is use [prep] an | 51 |
|
| 17 | is [verb] into an | 46 |
|
| 18 | is [verb] at an | 44 |
|
| 19 | is [to-vb] [prep] an | 39 |
|
| 20 | is know [prep] an | 38 |
|
| 21 | is known [prep] an | 37 |
|
| 22 | is make [prep] an | 34 |
|
| 23 | is made [prep] an | 34 |
|
| 24 | is regarded [prep] an | 30 |
|
| 25 | is regard [prep] an | 30 |
|
| 26 | is follow [prep] an | 25 |
|
| 27 | is followed [prep] an | 25 |
|
| 28 | is provided [prep] an | 23 |
|
| 29 | is provide [prep] an | 23 |
|
| 30 | is treated [prep] an | 21 |
|
