| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | how long does [pron] [vb infin] [pron] | 10 |
|
| 2 | how long [vb -s] [pron] [vb infin] [pers pn] | 10 |
|
| 3 | how long [vb -s] [pers pn] [vb infin] [pron] | 10 |
|
| 4 | how long [vb -s] it [vb infin] [pron] | 9 |
|
| 5 | how long [vb -s] it [vb infin] [pron] | 9 |
|
| 6 | how long [vb -s] [pron] take [pron] | 9 |
|
| 7 | how long [vb -s] [pron] [vb infin] you | 8 |
|
| 8 | how long [vb -s] [pron] [vb infin] you | 8 |
|
