The document discusses the use of conditionals and subjunctives in English. It explains that there is no subjunctive form, so past tense must be used instead. It outlines three types of conditional sentences: 1) conditional sentences expressing probability use "if + present + future"; 2) conditional sentences expressing supposition use "if + past (subjunctive) + conditional"; and 3) conditional sentences expressing past supposition use "if + past perfect + past conditional". Examples are provided for each type.

1. OPEN CONDITIONAL AND
SUBJUNCTIVE

2. INFINITIVE PAST PAST
PARTICIPLE
TO SPEAK SPOKE SPOKEN
TO DO DID DONE
TO BE WAS/WERE HAVE BEEN

3.  There’s no subjunctive in English,so we must
use Past Tense.
 Ex: If I go to London, I will see the Thames.
 EX: If I were you, I would speak portuguese.
 Ex: If I had studied, I would have passed on
the exam.

4.  Expresses a probability.
 If +Present + Future = Probability
 If I go to Rio de Janeiro, I will see Copacabana
beach.
 If I study hard, I will pass my exam.
 If I walk in the rain without carrying an umbrella, I
will get wet.

5.  Expresses a supposition.
 If + Past(subjunctive)+ Conditional=
Supposition
 If I went to Bahia, I would see the Pelourinho.
 If I were rich, I would live in Paris.
 If I won the lottery, I would buy a large house.

6.  Expresses a supposition in the past.
 If + Past Perfect (had+ past part.)+
Past Conditional (would have+ past
part)= Past Supposition
 If Mr. Brown had gone to Italy, he would have seen
the Pope.
 If I had studied, I wouldn’t have failed my exam.