1. The most frequent Future stems are built from an -s- ending, although not all dialects show the same behaviour. They can be reduplicated or not, they can have -se/-so thematic, -s athematic, -sie/-sio, -seie/-seio.
NOTE. There are dialectal additions to the beginning of those endings, as -is (i.-i., lat.) or -es (gr., o.-u.).
The root vowel is mostly e.
NOTE 1. They come probably from the desiderative-causative Present stem in -s and its variants. All dialects tend to differentiate the Present from the Future.
NOTE 2. The Future stem is common to all Europaio-derived languages but for ger. and sla. In fact, i.-i., gr. and bal. have almost the same formations. This means that, while the different Future forms has the same original pattern, some dialects didn't use this innovation of the IE III. We keep it, though, as a common Future formation is obviously needed in a modern system.
2. In Europaio, the Future is made by adding thematic -se, -so, -sie, -sio (or even -seie, -seio) when the Imperfect stem is thematic, and -s if it is athematic.
3. The Conditional is made, as in most of the European languages, with the past form of the Future, and this is made in Europaio by adding secondary endings to the Future Stem.
NOTE. This is an innovation added to modern Europaio, as the Europaio-derived dialects don't show an old conditional form. It is a modern feature, whose forms are shared by many modern European languages, like English; as, I will see, opposed to the conditional I would see (formed with the past form of the future-forming auxiliary will). It will be used especially for unreal conditionals.