| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] back [prep] | 24756 |
|
| 2 | [v-ing] back [prep] | 3877 |
|
| 3 | stretching [adv] [prep] | 156 |
|
| 4 | stretching [adv prt] [prep] | 108 |
|
| 5 | stretch back [prep] | 86 |
|
| 6 | stretching back [prep] | 45 |
|
