| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | used [to-vb] to [art] | 48 |
|
| 2 | used [verb] to the | 39 |
|
| 3 | used refer to [art] | 35 |
|
| 4 | used to refer to [art] | 33 |
|
| 5 | used [verb] to a | 15 |
|
| 6 | used [v-ing] to [art] | 8 |
|
| 7 | used accord to [art] | 7 |
|
| 8 | used according to [art] | 7 |
|
| 9 | used [verb] to an | 6 |
|
