| Flap 1 | Flap 2 |
| Aero- | Air |
| Anti- | Against, Opposite, Reverse |
| Bene- | Good |
| Bi- | Two |
| Circum- | Around |
| Mal- | Wrong, Bad |
| Post- | After |
| Pre- | Before |
| Retro- | Backward |
| Semi- | Half, Partly |
| Sub- | Under, Beneath |
| Trans- | Across, Over |
| self- | of the self |
| non- | not, opposite of |
| mis- | wrong, bad, no, not |
| ir- | not |
| in- | not, go into |
| im- | not |
| un- | not |
| il- | not |
| for- | not |
| contra- | against |
| ante- | before |
| an- | not |
| amphi- | both, around |
| de- | opposite of, away from, undo |
| dis- | opposite |
| im- | into |
| inter- | among, between |
| ultra- | extremely |
| ob- | against |
| per- | through |
| pro- | before, for, in support of |
| super- | over |
| sur- | over, above |
| ab- | from, away from |
| ad- | to motion toward, addition to |
| ap- | to, nearness to |
| auto- | self |
| co-, con- | together |
| re- | back, again |
| ex- | out, beyond, away from, former |
| extra- | outside, beyond, beside |
| hyper- | more than normal, too much |
| intra- | within |
| pro- | forward |
| se- | apart |
| fore- | before |
