When you want to say things like "I want to eat" or "I need to sleep" in Spanish, you have to use two verbs together. English speakers often assume they need a connecting word to translate the English "to". However, for many of the most common Spanish verbs, you do not need any connecting prepositions at all.
Instead, verbs like querer, poder, and deber are followed directly by an infinitive. You simply conjugate the first verb to match the subject, and you leave the second verb in its base form (ending in -ar, -er, or -ir). Trying to conjugate the second verb or inserting an extra a or de between them is a very common beginner mistake.
Word list
amarA1to loveamo bailar = I love to dancenecesitarA1to neednecesito dormir = I need to sleeppoderA1canpuedo hablar = I can speakquererA1to wantquiero comer = I want to eatrecordarA1to rememberrecuerda cerrar la puerta = remember to close the doordeberA2mustdebo estudiar = I must studydecidirA2to decidedecidió salir = he decided to leavedejarA2to letme dejan salir = they let me go outelegirA2to chooseeligió estudiar medicina = he chose to study medicineescogerA2to chooseescogió quedarse = she chose to stayesperarA2to hopeespero verte = I hope to see youintentarA2to tryintento aprender = I am trying to learnodiarA2to hateodio madrugar = I hate getting up earlyolvidarA2to forgetolvidé cerrar la puerta = I forgot to close the doorpermitirA2to letme permite salir = he allows me to go outpreferirA2to preferprefiero caminar = I prefer to walkprometerA2to promiseprometo llegar a tiempo = I promise to arrive on timesaberA2to know howsé nadar = I know how to swimsolerA2to do usuallysuelo llegar tarde = I usually arrive lateaconsejarB1to advisete aconsejo descansar = I advise you to restacordarB1to agreeacordaron reunirse = they agreed to meetadmitirB1to admitadmitió haber mentido = he admitted having liedadorarB1to loveadoro viajar = I love to travelconseguirB1to manageconseguí abrir la puerta = I managed to open the doordetestarB1to hatedetesto esperar = I hate waitingevitarB1to avoidevito comer tarde = I avoid eating latelograrB1to managelogré terminar = I managed to finishmerecerB1to deservemerece ganar = she deserves to winmerecerseB1to deservese merece descansar = he deserves to restparecerB1to appearparece estar cansado = he seems to be tiredpermitirseB1to affordno puedo permitirme viajar = I can't afford to travelprocurarB1to tryprocuro ser feliz = I try to be happyproponerB1to suggestpropuso ir al cine = he suggested going to the cinemarecomendarB1to recommendte recomiendo leer este libro = I recommend you read this bookreconocerB1to admitreconoció haberse equivocado = she admitted being wrongsugerirB1to suggestsugiero salir temprano = I suggest leaving earlyaborrecerB2to hateaborrezco madrugar = I loathe getting up earlyconfesarB2to confessconfesó haber mentido = he confessed to having lieddesearB2to desiredeseo viajar = I wish to travelfingirB2to pretendfinge dormir = he pretends to be asleeplamentarB2to regretlamento llegar tarde = I'm sorry for arriving latenegarB2to denynegó haberlo hecho = he denied having done itpensarB2to intendpienso ir = I plan to goplanearB2to intendplaneo viajar en julio = I plan to travel in JulypretenderB2to intend¿qué pretendes hacer? = what do you intend to do?sentirB2to regretsiento llegar tarde = I'm sorry I'm lateosarC1to dareno osó hablar = he didn't dare to speaksimularC1to pretendsimuló estar enfermo = he pretended to be sick
The Core Helpers
Some of the most frequent verbs in Spanish act a lot like English modal verbs (such as "can" or "must"). When you use poder, deber, querer, or necesitar, you attach the action you want to do right to the end.
No puedo venir hoy.
(I can't come today.)
Nosotros queremos comer pizza.
(We want to eat pizza.)
Tú debes estudiar más.
(You must study more.)
Ellos necesitan salir temprano.
(They need to leave early.)
Habits, Knowledge, and Preferences
A few verbs express how you do something or how you feel about doing it. For example, soler is a very useful verb that means you do something usually or regularly. It is always followed directly by an infinitive.
Yo suelo llegar tarde.
(I usually arrive late.)
Similarly, when you want to say that you "know how" to do something, you use saber plus the infinitive. While you can sometimes say saber cómo, just the infinitive is the most natural way to express a skill.
Mi hermano sabe tocar el piano.
(My brother knows how to play the piano.)
Yo prefiero caminar por la mañana.
(I prefer to walk in the morning.)
Planning and Trying
When you talk about your plans, hopes, or attempts, verbs like pensar, esperar, decidir, and intentar also link directly to an infinitive. Note that this rule only works when the person making the plan is the same person doing the action (meaning both verbs have the same subject). If you hope that someone else does something, the sentence structure changes completely.
Nosotros pensamos viajar a México.
(We plan to travel to Mexico.)
Siempre intento aprender algo nuevo.
(I always try to learn something new.)
Ella espera ver a sus amigos pronto.
(She hopes to see her friends soon.)
Summary
When pairing these common verbs with another action, follow a simple rule. Conjugate the first verb, leave the second verb in the infinitive, and never put a preposition between them.