| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [been] a long time since | 20 |
|
| 2 | [verb] [been] a long time since | 20 |
|
| 3 | [vb -s] [been] a long time since | 7 |
|
| 4 | 's [been] a long time [conj] | 6 |
|
| 5 | 's [been] [art] long time since | 5 |
|
| 6 | 's [been] a long [noun sg] since | 5 |
|
| 7 | 's [been] [art] long time since | 5 |
|
| 8 | 's [be] a long time since | 5 |
|
| 9 | 's [been] a long time since | 5 |
|
| 10 | 's [been] a long [noun] since | 5 |
|
| 11 | 's [been] a [adj] time since | 5 |
|
| 12 | 's [been] a long time since | 5 |
|
