| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] back to the [num ord] [noun sg] | 146 |
|
| 2 | [verb] back [prep] the [num ord] century | 112 |
|
| 3 | date back [prep] the [num ord] [noun sg] | 68 |
|
| 4 | [v-ing] back [prep] the [num ord] [noun sg] | 57 |
|
| 5 | [vb -s] back [prep] the [num ord] [noun sg] | 49 |
|
| 6 | go back [prep] the [num ord] [noun sg] | 42 |
|
| 7 | dating back [prep] the [num ord] [noun sg] | 32 |
|
| 8 | [verb] back [prep] the first [noun sg] | 30 |
|
| 9 | dates back [prep] the [num ord] [noun sg] | 27 |
|
| 10 | [vb past] back [prep] the [num ord] [noun sg] | 25 |
|
| 11 | [vb pp] back [prep] the [num ord] [noun sg] | 22 |
|
| 12 | [verb] back [prep] the second [noun sg] | 21 |
|
| 13 | [verb] back [prep] the last [noun sg] | 19 |
|
| 14 | [vb base] back [prep] the [num ord] [noun sg] | 17 |
|
| 15 | [to-vb] back [prep] the [num ord] [noun sg] | 16 |
|
| 16 | goes back [prep] the [num ord] [noun sg] | 14 |
|
| 17 | come back [prep] the [num ord] [noun sg] | 11 |
|
| 18 | [verb] back in the [num ord] [noun sg] | 11 |
|
| 19 | going back [prep] the [num ord] [noun sg] | 10 |
|
| 20 | [verb] back [prep] the next [noun sg] | 9 |
|
| 21 | look back [prep] the [num ord] [noun sg] | 9 |
|
| 22 | [verb] back on the [num ord] [noun sg] | 9 |
|
| 23 | [vb infin] back [prep] the [num ord] [noun sg] | 8 |
|
| 24 | get back [prep] the [num ord] [noun sg] | 8 |
|
| 25 | [verb] back [prep] the sixteenth [noun sg] | 8 |
|
| 26 | traced back [prep] the [num ord] [noun sg] | 7 |
|
| 27 | [verb] back [prep] the twelfth [noun sg] | 7 |
|
| 28 | [verb] back into the [num ord] [noun sg] | 7 |
|
| 29 | trace back [prep] the [num ord] [noun sg] | 7 |
|
| 30 | [verb] back [prep] the thirteenth [noun sg] | 7 |
|
