| es | you are |
| est | he is/she is |
| estis | you all are |
| possum | I am able/I can |
| possumus | we are able/we can |
| possunt | they are able/they can |
| potes | you are able/you can |
| potest | he can/he is able/she can/she is able |
| potestis | you all are able/you are able |
| sum | I am |
| sumus | we are |
| sunt | they are |