Present Active Infinitive verbs describe actions that either complement another verb (e.g. I want to teach), or that function as a noun (e.g. To teach is difficult.) As shown in the previous examples, infinitives can be complementary verbs or subjects. They can also be objects in the sentence (e.g. I would like for nothing more than to teach.) Infinitives have no person or number.

The following table shows the corresponding ending for present active infinitive verbs, an example using the verb παιδεύω, and a translation: παιδεύειν