| A | B |
| poteram | (impf) I was able/could |
| potes | (pres) you are able/can |
| poterit | (fut) he/she will be able |
| potuimus | (pf) we have been able/could |
| potueritis | (fut. pf.) you (all) will have been able 2)*you (all) have been able |
| potuerant | (plpf) they had been able |
| potueram | (plpf) I had been able |
| posse | to be able |
| potuero | (fut. pf) I will have been able |
| potero | (fut) I will be able |
| potuistis | (pf) you have been able/were able |
| potuerimus | 1)we will have been able 2)*we have been able |
| possent | *they were able |
| potuissent | *they had been able |
| possint | *they are able |
| possim | *I am able |
| potuerim | *I have been able/was able |
| possem | *I was able |
| potuissem | *I had been able |