Third Conditional
Concept: The third conditional (or third conditional) poses situations in the past that did not happen. It is the type of sentence most closely related to the Spanish subjunctive mood.
Structure:
Grammatical structure of the third conditional
 
• Option 1: If + Condition (sentence with verb conjugated in past perfect) + would have + Result (sentence with verb conjugated in past).
 
• Option 2: Result (sentence with verb conjugated in the past) + would have + if + Condition (sentence with verb conjugated in the past perfect).

Example sentences
• You would have passed your exam if you had worked harder.
• I would have believed you if you hadn't lied to me before.
• You could have been on time if you had caught the bus.
• She would have become a teacher if she had gone to university
• If I had known about it, I could have gone

Passive voice. 

Concept: The passive voice is used to show interest in the person or object that experiences an action rather than the person or object that performs the action. In other words, the most important thing or person becomes the subject of the sentence.

Structure: The passive voice is used when we focus on the object of the sentence. We form the passive with be + past participle (3rd form of the verb). In the present simple, the passive is: am / is / are + past participle (3rd form of the verb).

Example sentences
 A house is built by Andrea 
• An email will be sent tonight by the teacher
• A history book was written by Sofia
• The car had already been stolen by for onda person when the police arrived
• When I got home, dinner was being made by my mom

Intensifiers.
(so, such, too, enough)
Concept: Intensifiers and mitigators are used to vary the degree or strength of an adjective, verb or adverb.
- So and such are used to introduce the consequence of some fact, or to emphasize. In the same way, so is also used for everyday expressions
- Too is used to express something negative, the individual is not happy with the situation in which he is immersed.
- Enough has a positive meaning, the individual considers the situation as probable.
Structure:
- So: Noun + verb + so + adjective/adverb/determiner (+ that clause)
- Such: Such + adjective + noun (+ that clause)
- Too: Too + adjective/adverb/determiner (+noun) (+to infinitive)
- Enough: Adjective/adverb + enough (+to infinitive)

Examples:
They had such a good time!
It was too cold to sleep. 
She is really beautiful so I am really scared
Have you got enough money to call a taxi? 
I don't like coffee so water is better

Connectors expressing cause and effect.

Concept: Cause and effect connectors are certain types of discourse connectors or textual markers, that is, certain types of linguistic units that serve to link the parts of a text and thus give it a logical structure and organization.
Independent Clause: a complete sentence that contains the subject and verb of the sentence.
- Dependent Clause: It is not a complete sentence, it lacks elements and must be attached to an independent clause.
Likewise, the cause-effect relationship can occur in two forms:
• Simultaneous Event:
In this case, both sentences usually keep the same verb tense.
• Early Event or Late Event:
Here the sentences are usually in different verb tenses, since one event had to occur first in order for the other to be realized

Examples conectors:
because - porque
for - porque
because of - debido a
since - puesto que
as - puesto que
due to / owing to - debido a
Sentences:
The baby is crying because he is hungry.
play
He won't understand, since he doesn't speak English.
They stayed in because of the bad weather.
We'll have to stay home, for it is raining

Connectors expressing cause or condition.

Concept: Contrast connectors are used to join two ideas, generally opposite, joined to the connector to establish that different idea between the clauses used. When speaking of contrast, the relationship between the clauses is determined, what is the purpose of the connector, which is sought to highlight in the text.

Examples:
- Although
- Nevertheless
- Not with standing
- Otherwhise
- Even though
- Though
- But
- Providing
- However
- Still
- Yet
- Unless

Sentences:
• That man has much money. however, he isn’t happy at all 
• I like playing football. On the other hand, my sister likes playing basketball.
• Although this is not exact information, it is said that 3 jobs are scheduled for next week.
• This is so people can watch TV and play playstation games at the same time. 
• The place was so beautiful; nevertheless, we did not want to spend our holiday in here

Songs for children and Christmas songs.