27.05.2026

15 minutes to read

Presente de indicativo is formed with the help of the verb stem and special endings. In Spanish, all verbs are divided into three groups:

• verbs ending in -ar;
• verbs ending in -er;
• verbs ending in -ir.

To build the presente de indicativo form, it is necessary to remove the infinitive ending and add a new ending.
Below is a table with the main conjugation patterns.

There are several rebel verbs in Spanish that completely did not care about the general logic and the flipped vowels rule. Their forms will have to be memorized by heart, there are no other options here — their stems are unique and developed historically. The only pleasing thing is that there are only six pieces of such verbs. But we use them literally every minute.
Ser (to be): sea, seas, sea, seamos, seáis, sean.
Estar (to be/be located): esté, estés, esté, estemos, estéis, estén (notice: the graphic accent is placed everywhere except for the nosotros form).
Ir (to go/drive): vaya, vayas, vaya, vayamos, vayáis, vayan.
Saber (to know something): sepa, sepas, sepa, sepamos, sepáis, sepan.
Dar (to give): dé, des, dé, demos, deis, den (the stick over dé is needed only to not mix up the verb with the preposition de).
Haber (auxiliary verb): haya, hayas, haya, hayamos, hayáis, hayan. Our familiar impersonal form hay here transforms into a concise haya.
In addition to this six, there is another group with a trick. These are verbs that have something breaking in the first form (yo) in the regular present. Since the subjunctive is born precisely from this form, then all the "irregularity" automatically moves to absolutely all persons in the subjunctive mood. Take the same tener: in the indicative mood we say yo tengo. We forget about the infinitive, take the stem teng- and let's go: tenga, tengas, tenga, tengamos, tengáis, tengan. Other popular verbs go down this same track:

• Hacer (from the form yo hago) → haga, hagas, haga...
• Poner (from the form yo pongo) → ponga, pongas, ponga...
• Salir (from the form yo salgo) → salga, salgas, salga...
• Decir (from the form yo digo) → diga, digas, diga...
• Traer (from the form yo traigo) → traiga, traigas, traiga...
• Venir (from the form yo vengo) → venga, vengas, venga...
• Conocer (from the form yo conozco) → conozca, conozcas, conozca...

Stem-changing are what they call verbs in which the root starts changing vowel letters as soon as the stress falls on them. The main thing here is to clearly separate the first/second groups and the third.
With I and II conjugation verbs (those in -ar and -er), like pensar (where the letter e jumps into ie) or poder (where o turns into ue), everything goes according to the classic "boot" scheme. The root mutates only in the persons yo, tú, él/ella and ellos/ellas. But the nosotros and vosotros forms remain clean and correct — the stress left the root, which means there is no need to change anything.

• Example for pensar: piense, pienses, piense, pensemos, penseis, piensen.
• Example for poder: pueda, puedas, pueda, podamos, podáis, puedan.

With III conjugation verbs (those in -ir), the story is a bit more twisted. Inside the "boot" everything changes as usual for them, but the nosotros and vosotros forms do not stay aside either. They narrow their root vowel according to the principle e → i or o → u.

• Verbs of the sentir type (chain e → ie / i): sienta, sientas, sienta, sintamos, sintáis, sientan.
• Verbs of the pedir type (alternation e → i / i): pida, pidas, pida, pidamos, pidáis, pidan.
• Verbs of the dormir type (transition o → ue / u): duerma, duermas, duerma, durmamos, durmáis, duerman.

The inclusion of the subjunctive mood is not chaos, there is its own rigid logic here. Usually, the subjunctive crawls out in complex sentences after the conjunction que, when we have two different acting persons. If the person is one and the same, Spaniards do not sweat at all and put a regular infinitive. Look at the difference: Quiero viajar (I myself want to go), but Quiero que tú viajes (I want that you precisely go — the subjects changed).
All situations where one cannot do without the subjunctive can be laid out into five understandable baskets:
Orders, desires, requests, or hard prohibitions. When one person tries to bend the actions of another under themselves. Look for the verbs querer (to want), pedir (to request), exigir (to demand), prohibir (to forbid), or decir (when this is not just a story, but a valuable instruction).
Emotions and personal feelings. Any soulful reaction to some event instantly turns on the subjunctive mode. This includes alegrarse de (to rejoice at something), sentir (to regret), gustar (to like), molestar (to annoy), plus impersonal phrases in the spirit of es fantástico que (it's cool that).
Doubts, uncertainty, and negation. One hundred percent certainty is always the indicative. The slightest step in the direction of doubt — we turn on the subjunctive. If the verb creer (to think) goes with a plus sign, we need the indicative (Creo que viene). But one deserves to add "not," as everything breaks: No creo que venga. This same place includes dudar (to doubt), es posible que (it is possible), puede ser que (it may be). The words quizás and tal vez (maybe) require the subjunctive if you want to emphasize your skepticism.
Assessment of what is happening (impersonal constructions). An attempt to evaluate a situation through the concepts of importance or necessity: es importante que (it is important that), es necesario que (it is necessary that), es una lástima que (it's a pity that).
Time clauses with an eye on the future. If the action after the conjunctions cuando (when), hasta que (until), antes de que (before), or tan pronto como (as soon as) is still only supposed to happen in the future, it is impossible to use regular time there — only the subjunctive. If we are talking about a regular routine or about the past, we calmly use the indicative.

To finally sort out the topic, let's analyze real examples with comments "on fingers":

• Es necesario que estudies más para el examen. (It is necessary that you study better for the exam. Comment: An impersonal assessment of importance forces changing the form of the verb in another person).
• No creo que Juan tenga razón en esta discusión. (I don't think that Juan is right in this argument. Comment: The turn "no creo que" completely removes certainty, therefore instead of "tiene" we take "tenga").
• Me alegra mucho que vengas a mi fiesta de cumpleaños. (I am very glad that you will come to my birthday party. Comment: A direct emotion regarding someone else's action).
• Cuando llegue a casa, te llamaré sin falta. (When I come home — I will dial you. Comment: The action after "cuando" is completely directed into the future, hence the form "llegue").
• Busco un secretario que hable tres idiomas fluidamente. (I am looking for a secretary who speaks three languages fluently. Comment: We are looking for a hypothetical person, some abstract candidate, who is not in our reality yet).
• ¡Que tengas un buen fin de semana! (Have a good weekend! Comment: A short wish, where the first part of the phrase in the spirit of "I wish that" is simply implied).

Full mastery of Presente de Subjuntivo erases the feeling that you are speaking by templates from a textbook. This gives colossal freedom, makes speech lively, plastic, and truly understandable for native speakers. The main thing is more practice.