e-ie,o-ue,u-ue Stem-changing Verbs

Remember the BOOT! No changes for Nosotros/Vosotros.
For the other subjects, the stem makes a change.
- the "e"changes to "ie" or
- the "o" changes to "ue" and sometimes "u" to "ue"
See if you can find the correct conjugation for these common verbs.