Highly Irregular Verbs in Spanish: Ser, Ir, Haber and More
Learn the Spanish verbs that do not follow simple regular or stem-changing patterns — from ser, estar, ir and haber to tener, hacer, decir, venir, dar and ver.
Why highly irregular verbs matter
Highly irregular verbs are not rare exceptions. They are some of the most frequent verbs in Spanish. You need them for identity, location, movement, possession, perfect tenses, future plans, obligation, everyday actions and common expressions. Learning them as a small core group gives you a strong base for real Spanish.
How to use this page
Use this page after regular verbs, stem-changing verbs and the general irregular verbs overview. Focus on the most frequent present-tense forms first, then connect each verb with its main grammar function.
Start with soy, estoy, voy, he, tengo, hago, digo, vengo, doy and veo.
Use ser for identity, estar for location/state, ir for movement, haber for perfect tenses and tener for possession.
Practise structures such as voy a estudiar, he visto, tengo que salir and estoy aprendiendo.
The core system: learn high-frequency forms first
Identity and state
Ser and estar are both irregular and both translate as “to be”, but they do different jobs.
soy estudiante · estoy en casa
Movement and future
Ir is highly irregular and also forms the near future with ir a + infinitive.
voy al centro · voy a estudiar
Auxiliary and possession
Haber forms perfect tenses, while tener expresses possession and obligation.
he visto · tengo tiempo · tengo que salir
Highly irregular Spanish verbs at a glance
These verbs are best learned as individual core verbs because they appear constantly and often build important grammar structures.
| Infinitive | Main present form | Main function | Example | Related topic |
|---|---|---|---|---|
| ser | soy, eres, es, somos, sois, son | identity, classification, origin, time | Soy estudiante. | Ser and Estar |
| estar | estoy, estás, está, estamos, estáis, están | location, state, progressive forms | Estoy en casa. | Ser and Estar |
| ir | voy, vas, va, vamos, vais, van | movement, near future | Voy a estudiar. | Near Future |
| haber | he, has, ha, hemos, habéis, han; hay | perfect tenses, existence | He visto la película. Hay café. | Haber and Hay |
| tener | tengo, tienes, tiene, tenemos, tenéis, tienen | possession, age, obligation | Tengo que trabajar. | Modal Verbs |
| hacer | hago, haces, hace, hacemos, hacéis, hacen | doing, making, weather expressions | Hago la tarea. | common irregular verb |
| decir | digo, dices, dice, decimos, decís, dicen | saying, telling | Digo la verdad. | stem change + irregular yo |
| venir | vengo, vienes, viene, venimos, venís, vienen | coming | Vengo mañana. | stem change + irregular yo |
| dar | doy, das, da, damos, dais, dan | giving | Te doy mi número. | short irregular verb |
| ver | veo, ves, ve, vemos, veis, ven | seeing | Veo la televisión. | irregular yo form |
Ser and estar: two highly irregular verbs for “to be”
Ser and estar are both highly irregular and both translate as “to be”. The difference is not only about permanent or temporary meaning. It is mainly about the function of the verb.
Soy profesor. — I am a teacher.
Es de México. — He / she is from Mexico.
Estoy en casa. — I am at home.
Estamos estudiando. — We are studying.
Learn this contrast in detail here: Ser and Estar.
Ir: movement and near future
Ir is one of the most irregular and most useful Spanish verbs. It means “to go” and also builds the near future with ir a + infinitive.
Voy al supermercado. — I am going to the supermarket.
Vas a la escuela. — You are going to school.
Vamos a estudiar. — We are going to study.
Van a viajar mañana. — They are going to travel tomorrow.
The structure ir a + infinitive belongs to the near future: Near Future.
Haber and tener: “have” in different Spanish structures
English uses “have” in several ways, but Spanish separates these meanings. Use haber as an auxiliary verb in perfect tenses, and use tener for possession, age and obligation.
He leído el libro. — I have read the book.
Hay un libro en la mesa. — There is a book on the table.
Tengo un libro. — I have a book.
Tengo que leer. — I have to read.
Learn the haber system here: Haber and Hay.
Irregular yo forms: hago, digo, vengo, doy and veo
Several very common Spanish verbs have irregular yo forms in the present tense. Some also combine a stem change with an irregular yo form.
| Infinitive | Yo form | Other present forms | Example |
|---|---|---|---|
| hacer | hago | haces, hace, hacemos, hacéis, hacen | Hago ejercicio. |
| decir | digo | dices, dice, decimos, decís, dicen | Digo la verdad. |
| venir | vengo | vienes, viene, venimos, venís, vienen | Vengo de Chile. |
| dar | doy | das, da, damos, dais, dan | Te doy un ejemplo. |
| ver | veo | ves, ve, vemos, veis, ven | Veo una película. |
Important structures with highly irregular verbs
Highly irregular verbs often matter because they build larger grammar structures. Learn the full phrase, not only the isolated verb.
| Structure | Verb | Meaning | Example |
|---|---|---|---|
| ser + identity | ser | to identify or classify | Soy estudiante. |
| estar + location | estar | to locate something specific | Estoy en casa. |
| estar + gerund | estar | progressive action | Estoy aprendiendo. |
| ir a + infinitive | ir | near future | Voy a estudiar. |
| haber + participle | haber | perfect tense | He visto la película. |
| hay | haber | there is / there are | Hay café. |
| tener que + infinitive | tener | obligation | Tengo que salir. |
Highly irregular verbs vs stem-changing verbs
Stem-changing verbs follow a visible vowel-change pattern, such as e → ie or o → ue. Highly irregular verbs often have more unpredictable forms or very special functions.
pensar → pienso follows an e → ie pattern.
poder → puedo follows an o → ue pattern.
ser → soy, eres, es is highly irregular.
ir → voy, vas, va is highly irregular.
Learn the regular stem-change system here: Stem-changing Verbs.
When to use highly irregular Spanish verbs
Use ser and estar
Use these verbs for identity, classification, location, state and progressive forms.
Soy estudiante. · Estoy aquí.
Use ir
Use ir for movement and ir a + infinitive for near future plans.
Voy al centro. · Voy a estudiar.
Use tener and haber
Use tener for possession and haber for perfect tenses or hay.
Tengo tiempo. · He terminado. · Hay preguntas.
Related grammar topics
Irregular Verbs
Review the broader system of Spanish irregular verbs before focusing on high-frequency exceptions.
Stem-changing Verbs
Compare highly irregular verbs with regular stem-change patterns such as e → ie and o → ue.
Ser and Estar
Learn the difference between ser and estar as highly irregular core verbs.
Haber and Hay
Understand haber as an auxiliary verb and hay as “there is” or “there are”.
Modal Verbs
Practise structures such as tener que, poder, querer and deber.
Present Tense
Review the present-tense forms where most highly irregular verbs appear first.
Typical mistakes with highly irregular Spanish verbs
- Regularizing very common forms: say soy, voy, tengo, hago, not invented regular forms.
- Confusing ser and estar: say soy estudiante, but estoy en casa.
- Using tener for perfect tenses: say he visto, not tengo visto for “I have seen”.
- Forgetting a after ir in the near future: say voy a estudiar, not voy estudiar.
- Confusing hay and estar: say hay un hotel to introduce it, but el hotel está aquí to locate it.
Where to go next
After this page, continue with irregular verbs, ser and estar, and haber and hay. These topics explain the main high-frequency irregular systems in more detail.
Want personal guidance?
If highly irregular verbs feel confusing, individual guidance can help you practise the core forms, sentence patterns and differences between ser, estar, ir, haber and tener.
FAQ: Highly irregular verbs in Spanish
What are highly irregular verbs in Spanish?
Highly irregular Spanish verbs are verbs with common forms that do not follow one simple regular pattern. Examples include ser, estar, ir, haber, tener, hacer, decir, venir, dar and ver.
What are the most important highly irregular Spanish verbs?
The most important highly irregular verbs include ser, estar, ir, haber, tener, hacer, decir, venir, dar and ver.
Why are ser and ir highly irregular?
Ser and ir are highly irregular because their present forms do not follow the regular verb endings in a predictable way: soy, eres, es; voy, vas, va.
Is haber a highly irregular verb?
Yes. Haber is highly important and irregular because it works as an auxiliary verb in perfect tenses and also has the impersonal form hay.
What is the difference between highly irregular and stem-changing verbs?
Stem-changing verbs follow vowel-change patterns such as e → ie or o → ue. Highly irregular verbs often have more unpredictable forms or special grammar functions.
What present-tense forms should beginners learn first?
Beginners should learn high-frequency forms such as soy, estoy, voy, he, hay, tengo, hago, digo, vengo, doy and veo.
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