2. Type 1
Real Condition : If + Simple Present + Present Future
a. I will play chess unless I don’t have time
b. I will to Putuk Kursi unless my wife doesn’t allow me.
a. If I have time, I will play chess
b. If my allows me, we can go to Putuk Will
Kursi If + subject + simple present tense + Can + Verb in simple
may form
must

3. Type 2
Unreal Condition: If Simple Past + Past Future
If Condition The Fact In the unreal condition, the past
tense form of be is always were in
a) If we had known that you were a) I know I don’t have time, the conditional sentence, it can
there, I would have written you therefore I can’t go to play NEVER be was Correct English.
a letter. futsal. If I were ... If we were ...
b) He would tell about it if he b) Today is not holiday, so we if you were ... If you were ...
were here. can’t go to the beach. If he were ... If they were ...
c) If he didn’t speak so quickly c) He won’t tell you about it, he’s If she were ...
you could understand. not here. If it were ...
d) He speaks very quickly. You
can’t understand him.
 These sentences above are contrary to the fact..
If + subject + conjugated verb + modal
Subject + modal + if + conjugated verb
 The If clause can come first or last in the sentence with no change in meaning
 The word if generally not followed directly by the modal; the modal appears in the other part of the sentence
unless there are two modals in one sentence.
 Remember! When unreal condition is in Simple Past, the fact is in Simple Present.
 When unreal is in the negative, the fact is in the positive.

4. Type 3
Unreal Condition: If + Past Perfect +
Past Perfect Future
If Condition The Fact
a) If I had known you were there, I would have a) We didn’t know you were there , we didn’t write
written you a letter. you any letter.
b) She would have sold the house if she had found b) She didn’t sell her house because she didn’t find
the right buyer. the right buyer.
c) Had she seen the movie, she would have told c) She didn’t see the movie, she didn’t tell you.
you.
 Structure of the if condition above is:
If + subject + past perfect + would/could/ might/have + [verb in past participle]
 It is also possible to indicate a past unreal condition without using the word if, in C the auxiliary had is placed
before, rather than after, the subject. This clause will usually come first in the sentence.
had + the subject + [verb in past participle]
 When unreal is in Past Perfect, the fact is in Simple Past.

5. Habitual: If + Simple Present + Simple Present
a) If the doctor has coming office hours, he visits his There are no modal.
patients in the hospital in the afternoon. The structure sentence is:
b) John usually walks to school if he has enough If + subject + simple present tense +
time. simple present tense.
c) If you go to the post office, please mail this letter Remember that command form
for me. consist of the simple form of the verb.
d) Please call me if you hear from Jane. The structure of the sentence is:
If + subject + simple present tense +
command form.