Imperfect, Active, Indicative
To be able
Poteram
Poterās
Poterat
Poterāmus
Poterātis
Poterant
Present, Active, Indicative
To be able
Possum
Potes
Potest
Possumus
Potestis
Possunt
Future, Active, Indicative
To be able
Poterō
Poteris
Poterit
Poterimus
Poteritis
Poterunt
Imperfect, Active, Indicative
To be
Eram
Erās
Erat
Erāmus
Erātis
Erant
Future, Active, Indicative
To be
Erō
Eris
Erit
Erimus
Eritis
Erunt
Possumus cenāre
We are able to dine
Example of a complementary infinitive