Present Tense

Simple Present tense is used to describe habitual actions that occur with some frequency and makes no reference to whether it is happening in the present.

I play tennis. Yo juego al tenis.
(Hace mención de un deporte que realizo cotidianamente y que no necesariamente lo estoy jugando en este momento).He works in an office. Él trabaja en una oficina.
(Se refiere al trabajo que desarrolla una persona frecuentemente). They travel to Madrid. Ellos viajan a Madrid.
(Habla de un viaje que se repite a diario, aunque el sujeto no lo esté realizando ahora).

Below are affirmative forms, interrogative and negative this tense:

Present Progressive   

The Present Continuous or Present Progressive tense is used to express actions happening at the same time you are talking, for example:

I am speaking English. Yo estoy hablando ingles.
You are reading a book. Tú estás leyendo un libro.
He is studying the lesson. Él está estudiando la lección.
She is buying a hat. Ella está comprando un sombrero.
It is raining. Está lloviendo.
We are sleeping. Nosotros estamos durmiendo.
You are dancing in the street. Ustedes están bailando en la calle.
They are walking in the park. Ellos están caminando en el parque.

This tense is constructed using as auxiliary mode Simple Present tense of the verb TO BE as main verb in the infinitive with ING termination, as shown below:

In the top box uses the verb play (TO PLAY) exemplary.

Also be used to refer to situations that occur around the time when one speaks, albeit not have to be at this moment, for example:

He is working in a bank. Él está trabajando en un banco.
(Significa que es su trabajo habitual, aunque no necesariamente la persona debe estar trabajando ahora).

Past Progressive

Indicates continuing action, something that was happening, going on, at some point in the past. This tense is formed with the helping "to be" verb, in the past tense, plus the present participle of the verb (with an -ing ending):

	Positive	Negative	Question
I / he / she / it	I was speaking.	I was not speaking.	Was I speaking?
you / we / they	You were speaking.	You were not speaking.	Were you speaking?

Past Tense.

Simple Past tense is used to describe actions that have happened at an earlier time and have already completed, for example:

She cleaned her house. Ella limpió su casa.
I broke the window. Yo rompí la ventana.

Here we see their conjugation in the Spanish equivalent to the Past Indefinite. Notice that the sentence structure is similar to the Simple Present:

Future Will.

The Future with 'Will' (or 'Will' Future) is used to make predictions for the future, ie to discuss unplanned future or uncertain. The following examples will be used in the explanation. We use two examples to check for changes in the third person singular.

Be Going To.

Another way we could make verbal in the future, is the verb "be going to", but it is a near future and planned. The Castilian would be equivalent to the "I will", expressions such as "I will eat" or "go to sleep". it would go + to + infinitive.

Present Perfect.

The Present Perfect in English is a tense that is used to refer to actions that happen in the recent past and that have some connection with this. Its equivalent in the Spanish language is the Present Perfect:

I have sent the letter.
Yo he enviado la carta.

In order to build the affirmative form of the Present Perfect as an auxiliary we use the verb TO HAVE in the Simple Present and accompanied by the main verb in its past participle (either regular or irregular verbs verbs):