| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a long [noun] of time | 109 |
|
| 2 | a long [noun] of time | 109 |
|
| 3 | a long [noun sg] of time | 109 |
|
| 4 | a long period of time | 102 |
|
| 5 | a long period of time | 102 |
|
