2What are Triangle Verbs The triangle verbs are a set of irregular verbs that all share the same set of endings. The most common of these verbs areTener — Poner — SaberEstar — venir — QuererPoder — decirHacer — traer
3The Endings imos iste isteis ieron I use a triangle to help me remember the endings. The areas the triangle touches are identical to regular –er/-ir preterite tense endings.imosisteisteisieron
4The other endings e imos iste isteis o ieron The other two endings I remember are just like the –ar preterite tense endings but without accents.eimosisteisteisoieron
5The StemsEvery triangle verb—in other words, all the verbs that use these endings—has an irregular stem. This means you will not be able to simply take the –ar, -er, and –ir off as you have done in the past.YOU MUST MEMORIZE THE STEM AS WELL AS THE ENDINGS.
6These are the Stems Tener tuv Poner pus Saber sup Estar estuv Venir vinQuerer quisPoder pudDecir dijHacer hic/zTraer traj
7Putting it all together The endingsThe conjugation processeimosisteoieronFirst choose the verb that communicates the meaning you wantSelect the irregular stem for that verb.Add the ending that matches the doer of the action.
8Let’s conjugate poder to say “he could.” imosisteieronFirst, write the stem for poderPUDSecond, add the he/she/usted ending from the irregular set of endings.Oo
9The process is the same with other triangle verbs To conjugate hacer to “we made” we would write the irregular stem.And then add the we form ending.eisteoieronimosHicimos
10Two Special RulesThe verb hacer uses the irregular stem “HIC.” The he/she/Ud. ending is an “O.” Because the “C” will change pronunciation when followed by “O,” we change the “C” to a “Z.”HIZOStems that end in “J” such as “traj” and “dij” will drop the “I” in the ellos/Uds. form.If the stem ends in “j” drop the “i” in they.TRAJERONDIJERON
11All that is left is to memorize You should memorize this using the method that works best for you. If you like rules, follow the ones in this presentation.If you prefer to simply memorize, take some time and write out the conjugations and study them until they are automatic.