| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they are [verb] on [art] [adj] | 37 |
|
| 2 | they are [vb pp] on [art] [adj] | 25 |
|
| 3 | they are [verb] on a [adj] | 19 |
|
| 4 | they are [verb] on the [adj] | 16 |
|
| 5 | they are [v-ing] on [art] [adj] | 11 |
|
| 6 | they are based on [art] [adj] | 8 |
|
| 7 | they are base on [art] [adj] | 8 |
|
