Answer:
1. No puedo ir a la escuela <em>porque </em>estoy enferma.
2. <em>Si </em>me ayudas con mi tarea, te ayudaré con la tuya.
3. <em>Aunque </em>me diga que me ama, no le creeré.
4. <em>Antes de que </em>te vayas,<em> </em>llámame.
5. Les cuento esta historia <em>con objeto de </em>decir la verdad.
Explanation:
1. I cannot go to school <em>because </em>I'm sick.
In the first sentence, we used the Spanish conjunction <em>porque </em>which means <em>because. </em>It is used to introduce clauses that indicate <u>cause</u>, and in Spanish it is referred to as <em>conector de causalidad. </em>Words or group of words such as <em>porque, puesto que, visto que </em>etc. introduce <u>dependent clauses</u> that respond to the question WHY.
2. <em>If</em> you help me with my homework, I'll help you with yours.
In this example, we have the word <em>si</em>, meaning <em>if. </em>The conjunction <em>si </em>introduces sentences known as <u>conditional sentences</u>. In these, we have one independent clause (I'll help you with yours.) and one dependent clause (If<em> </em>you help me with my homework). This type of dependent clauses responds to the question ON WHAT CONDITION. Other <em>conectores de condición </em>are <em>siempre que, a condición de que </em>etc.
3. Even if he tells me he loves me, I won't believe him.
The conjunction <em>aunque </em>introduces <u>concession</u> and these clauses are called <em>concessive clauses</em>. This means that these types of clauses concess, they let something be. The dependent clause (introduced with <em>aunque) </em>can be understood as saying <em>EVEN THOUGH </em><em>THIS, I won't believe him</em>. Other conjunctions we use in these sentences are <em>a pesar de, por más que
, si bien,</em> etc.
4. Before you leave, call me.
In this example we've used the conjunction <em>antes de que</em>, meaning <em>before. </em>It is a conjunction introducing <u>temporal clauses,</u> and answering to the question WHEN. There are other conjunctions that can be used such as <em>cuando</em>, <em>después de que, </em>etc. <u>Antes de que</u> and <u>cuando</u> introduce the subjunctive mode.
5. I' telling you this story in order to tell you the truth.
The conjunction we used here is <em>con objeto de</em> and it is used to introduce <u>clauses of purpose</u>. These clauses can easily be identified since they answer to the question FOR WHAT PURPOSE. Other conjunctions of purpose are <em>para (que), con el objetivo de (que), a fin de (que). </em>
