| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | i could [adv] let [pron] [vb infin] | 21 |
|
| 2 | i could not let [pron] [vb infin] | 18 |
|
| 3 | i could [not/n't] let [pron] [vb infin] | 18 |
|
| 4 | i could n't let [pron] [vb infin] | 16 |
|
