Choosing between Future Perfect and Conditional Perfect in Spanish
Conceptually speaking, the future and conditional perfect verb tenses in Spanish are similar — each tense expresses completed action in a future time. The similarities end there, however, because the future tense expresses action that’s almost sure to be completed in the future, whereas the conditional perfect carries a great deal of doubt concerning the outcome. The following sections provide additional guidelines to help you distinguish between these two compound tenses and choose the tense that best suits your needs.
Using the future perfect
The future perfect is packed with promise. Use it when the outcome is almost certain. This tense lets you
Express what will have happened by a given time in the future:
Use para to introduce the time expressions in these sentences.
Express probability or conjecture (when a slight doubt exists) of a recent past action:
Using the conditional perfect
Use the conditional perfect to express an action that would have happened but didn’t. Such sentences typically contain a dependent clause explaining why the action did not occur; this is your excuse clause — the one that gets you out of trouble.
When forming the dependent clause, keep the following two rules in mind:
When this dependent clause begins with but, the verb in that clause is in the indicative.
When the dependent clause begins with if, the verb in the clause is in the imperfect subjunctive.
Following are a couple of examples that show the conditional perfect at work in a real, live sentence, complete with a dependent clause:
Nosotros habríamos ido, pero teníamos que trabajar. We would have gone, but we had to work.
Él habría hablado con ella, pero no entendía la situación. He would have talked with her, but he didn’t understand the situation.
Note: Use the indicative after but in the dependent clause.
Ellos habrían ganado más dinero, si hubieran trabajado más horas. They would have earned more money if they had worked more hours.
Tú habrías salido más temprano, si ellos te hubieran llamado a tiempo. You would have left earlier if they had called you on time.
Note: Use the imperfect subjunctive after if in the dependent clause.

Spanish Glossary
adjective
A word that describes a noun or pronoun, giving it specific attributes or characteristics.

Spanish Glossary
adverb
A word used to modify a verb, adjective, or another adverb by expressing time, place, degree, and so on. Many Spanish adverbs end in -mente.

Spanish Glossary
bartering
Giving goods or services in return for other goods and services, as opposed to the exchange of money.

Spanish Glossary
cardinal number
Any number used in counting or showing how many.

Spanish Glossary
comparative
A form of an adjective or adverb which indicates that one thing has some feature to a greater or lesser extent than the thing it is being compared to. Example: slower, more believable.

Spanish Glossary
conditional
A verb tense that expresses an action that should have, could have, or would have happened if the conditions were right.

Spanish Glossary
conjugate
To give different forms of a verb according to voice, mood, tense, number, and person. A conjugated verb is a verb that has been changed from its infinitive form to a form that agrees with the subject.

Spanish Glossary
consonant
Any of the letters b, c, d, f, g, h, j, k, l, m, n, ñ, p, q, r, s, t, v, w, x, y, z; the double letters ch, ll, and rr may also be considered consonants in Spanish.

Spanish Glossary
customs
1. The government agency in charge of collecting taxes or duties imposed on imported and/or exported goods. 2. The common social acts and conventions of a particular area.

Spanish Glossary
declare
To inform customs officials of any goods you’re carrying that may be taxable.

Spanish Glossary
definite article
Any one of the words el, la, los, or las used as adjectives to point out a specific noun.

Spanish Glossary
demonstrative adjective
An adjective that indicates or points out this, that, these, or those people, places, or things to which a speaker is referring.

Spanish Glossary
demonstrative pronoun
Replaces a demonstrative adjective and its noun.

Spanish Glossary
diminutive
1. Small. 2. A word that has been altered with a suffix to indicate a degree of smallness, often ending with -ito or -ita.

Spanish Glossary
diphthong
A complex vowel sound made by gliding from one vowel sound to the next within the same syllable.

Spanish Glossary
direct object noun
A sentence element that answers the question, Whom or what is the subject acting upon? and may refer to people, places, things, or ideas.

Spanish Glossary
direct object pronoun
Replaces a direct object noun and agrees with it in number and gender.

Spanish Glossary
duty
A tax imposed on imports, exports, or manufactured goods.

Spanish Glossary
future
Verb tense indicating an action to come.

Spanish Glossary
gerund
A verb form that ends in -ing and works like a noun. Spanish gerunds are also derived from verbs.

Spanish Glossary
haggling
Negotiations between a seller and a buyer to come to an agreement upon the price of an item for sale. The vendor typically proposes a high price while the buyer suggests a significantly lower price, and, through bartering, the two typically meet somewhere in the middle.

Spanish Glossary
imperative
A verb mood that indicates a command or request.

Spanish Glossary
imperfect
Verb tense indicating a continuing, uncompleted, customary, or simultaneous past action.

Spanish Glossary
indefinite article
Any one of the words un, una, unos, or unas used as adjectives to point out some person, place, thing, or idea, but not a specific one.

Spanish Glossary
indirect object noun
Answers the question To or for whom is the subject doing something? and refers only to people or beloved pets.

Spanish Glossary
indirect object pronoun
Replaces an indirect object noun, but is also used when the indirect object noun is mentioned.

Spanish Glossary
infinitive
The unconjugated form of a verb — dormir (to sleep), for example.

Spanish Glossary
interrogative adverb
An adverb used to ask a question.

Spanish Glossary
interrogative pronoun
A word that replaces a noun and is used to ask a question.

Spanish Glossary
market
1. (noun) In Spanish cultures, a traditional market is where vendors gather to sell their goods. Markets may be open or under a roof, and they offer a less formal shopping environment than typical supermarkets or grocery stores. Prices are usually negotiable. 2. (verb) To advertise and sell an item.

Spanish Glossary
mood
1. A characteristic of a verb that indicates the manner in which the action occurs. 2. A characteristic of a person that indicates the overall emotional state of that person.

Spanish Glossary
ordinal number
A number used to indicate order in a particular series.

Spanish Glossary
past participle
A form of a verb that expresses a completed action or a time gone by.

Spanish Glossary
possessive adjective
A word that goes before the noun that’s possessed in order to express my, your, his, her, its, our, or their.

Spanish Glossary
possessive pronoun
A word that replaces a noun and its possessive adjective and indicates ownership.

Spanish Glossary
preposition
A word that connects nouns to nouns, verbs to verbs, or verbs to nouns/pronouns and shows their relationship to one another.

Spanish Glossary
prepositional pronoun
A pronoun that serves as the object of a preposition and always follows the preposition.

Spanish Glossary
preterit
Verb tense expressing a past action or state.

Spanish Glossary
pronoun
A word that takes the place of a noun in a sentence.

Spanish Glossary
reflexive pronoun
A pronoun used in conjunction with a reflexive verb to express that an action is performed by a subject on itself.

Spanish Glossary
reflexive verb
A verb that indicates that the sentence's subject is acting upon itself. Reflexive verbs require reflexive pronouns.

Spanish Glossary
stem-changing verb
A verb that requires an internal change in the vowel before the -ar, -er, or -ir infinitive ending in all the singular and third-person plural forms of certain tenses.

Spanish Glossary
subject pronoun
A pronoun used as a subject.

Spanish Glossary
subjunctive
A grammatical mood indicating uncertainty, desire, supposition, hypothetical and theoretical situations, or impersonal opinions.

Spanish Glossary
subordinate clause
A part of a sentence containing a subject and verb that can’t stand on its own but describes something in the larger sentence.

Spanish Glossary
suffix
Letters added to the end of a word that change its meaning, give it a different grammatical function, or form a new word.

Spanish Glossary
superlative
A form of an adjective or adverb which indicates that one thing has some feature to a greater degree than anything it is being compared to. Example: greatest, most honorable

Spanish Glossary
syllable
A word or part of a word pronounced with a single sound, usually consisting of a vowel and one or more consonants.

Spanish Glossary
tilde
A mark (~) used in Spanish over an n to indicate the ny sound.

Spanish Glossary
vowel
Any of the letters a, e, i, o, and u. The letter y is never a vowel in the Spanish language, unlike its use in English.