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El subjuntivo después de ciertos verbos: explicación

You now know how to form the present subjunctive mood.  It's time to really look at it and how it is used.  Imagine you wanted to build a house.  First you have to learn how to use the tools.  Then you learn how to use the tools to develop skills to build the house- carpentry, electrical, plumbing, etc.  We need to do the same thing with language.  The first thing we'll look at is a type of clause called a noun clause.  Being an advanced language student, you should know these terms.  So let's figure out what a noun clause is by breaking down the phrase into two words- noun & clause.

We often want or demand certain items.  I want a new car.  I demand a raise.  In these two situations the things I want and demand are just that- things.  What if what I want is an action.  I want to buy a new car.  I demand to receive a raise.  We know after studying the uses of the infinitive that a verb can act as an object of a verb.  But what if....
  We finally arrive at a point where the subjunctive will be used. Not all noun clauses will use subjunctive though.  Remember doing the «¿Qué es el subjuntivo?»?  Only certain types of verbs will require the use of the subjunctive.  Just for review, look at the following sets of sentences.  How do they differ with their pairs?

The rule-

Here are some verbs that when in the main clause will require subjunctive in the noun clause- provided that there is a different subject. But: If the verb in the main clause is making an observation of what is happening, the verb in the noun clause is in the indicative.  Just to contrast- These verbs would not take subjunctive, but instead the indicative in the noun clause-provided there are two different subjects. Understand the difference?

What's this "two subject" thing?

Think about this analogy:

The main clause is a car.  The noun clause is a trailer.   The "que" is a trailer hitch.

What if Bob goes alone?  Then he takes off the trailer- no sense pulling around an empty trailer- and takes off the hitch- so he doesn't bang his knee on it.  He fills his car with infinitives.

OK.  Language time.

If you have different subjects for the two clauses, put in a «que» and conjugate the verb in the noun clause. (It may be indicative or subjunctive)

If you have only one subject, you must take off the trailer hitch «que» and keep the object verb(s) in the infinitive.
So what should you know?

You will need to do two things with the subjunctive.  First it will be necessary that  you determine if the subjunctive is needed in sentences in fill-in-the-blank and multiple choice type questions on tests- in class or on SAT II, AP, College Placement, etc. tests.

Secondly you will need to be able to create complex sentences which use the subjunctive.  Caution: Misuse of the subjunctive is as bad as not using it when you should, so make certain you understand the types of verbs which require the subjunctive in the noun clause, as well as those types of verbs which do NOT require the subjunctive.

Ahora, ¿Qué hago?......
Go practice with fill-in-the blanks.

Go practice creating original sentences.

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