Simple Future Regular Forms and Tenses
There are two ways to form the future tense in Spanish: the informal future (ir + a + infinitive) and the simple future (el futuro simple). The loose translation of the simple future would be that someone "will" or "shall" do something. It is also used to express the possibility of what someone "might" or "may" be doing in the present. The simple future, unlike the informal future, is only one word created by adding endings to the infinitive of a verb.
Regular Simple Future Forms
To form the simple future tense, simply add the correct ending to the infinitive of the verb. All verb conjugations (-ar, -er, and -ir) have the same endings for the simple future tense:
|usted, él, ella||-á|
|ustedes, ellos, ellas||-án|
The simple future was originally formed by adding haber to an infinitive. (viajar he - travel I must, viajar has - travel you must, viajar ha - travel he must, etc.). Notice that the simple future endings are the same as the present indicative conjugations without the orthographic accents.
Uses of the Simple Future
While the simplest way to describe the future is to talk about what a person “will” do, there are a few subtleties that also include making assumptions about the present, making predictions about the future, and giving solemn commands. There are also several instances where you will not use the simple future in Spanish even though you may use “will” in English.
1. Making assumptions about the present (probably)
Because the future is unknown, it is understandable that we would use the simple future tense to talk about suppositions or predictions about the present time as well. You can use the simple future to offer a guess about something. This is the most common usage of the simple future in Spanish.
2. Making predictions about the future (will)
The simple future is used to convey what will happen, things that are planned, but because it is in the future, the outcome is unknown. The final result will need to be verified.
Note that you do not use the simple future for actions that are certain in the future. For these, you will use the present tense. Check out the examples below:
3. Giving solemn commands (shall)
Similar to the original formation of the future (viajar he - travel I must), giving solemn commands is another way to use the simple future, although not a very common one.