Creer – "to believe" or "to think" – is a common irregular Spanish verb.
Dar, “to give,” is one of the most common Spanish verbs and is irregular in the present tense. It’s used much like its English equivalent.
Decir – to say or to tell – is an irregular Spanish verb.
Estar is one of two Spanish verbs that mean "to be."* Estar is used to describe the current state of a noun – temporary, changeable attributes.
The future is one of the simplest Spanish tenses. There is only one set of endings and most verbs – even those which are irregular in the present tense – use their infinitive as the root of the conjugation.
Wouldn’t it be nice if you could plan a perfect future? Too bad that’s not what the future perfect tense does. The grammatical term “perfect” means “completed,” so the future perfect is used to talk about something that will have happened or will have been completed at some point in the future.
The Spanish future progressive is very similar to its English counterpart (will be + -ing). In both languages, the future progressive expresses an action that will be in progress at a certain point in the future.
The future subjunctive is supposed to be used in Spanish when a verb or expression requiring the subjunctive in the main clause is in the present or future and refers to a future action.
The future tense is used for upcoming events. It is usually translated as "will."
There are a number of Spanish verbs which are regular in all but the first person singular. These are known as “g verbs” or “yo go verbs” because the first person singular requires an unexpected g.