This document provides information about conditional sentences in English. It explains the meaning and verb forms used in the "if clause" and "result clause" depending on whether the condition is possible in the present/future, untrue in the present/future, or untrue in the past. Examples are given to illustrate each type of conditional sentence. The document also includes a practice section where readers must complete conditional sentences by filling in the correct verb forms.

2. MEANING OF
THE “IF
CLAUSE”
VERB FORM IN
THE “IF
CLAUSE”
VERB FORM IN
THE “RESULT
CLAUSE”
EXAMPLES
True in the
present or future
Simple present
Simple present
Simple future
If I have enough time, I
write to my parents
every week.
If I have enough time
tomorrow, I will write to
my parents.
• If the weather is nice tomorrow, we will go on a
picnic.
• Gabriel will fail the subject if he doesn’t bring his
homework,
Note: The simple present, not the simple future is used in the
“if clause”.

3. MEANING OF
THE “IF
CLAUSE”
VERB FORM IN
THE “IF
CLAUSE”
VERB FORM IN
THE “RESULT
CLAUSE”
EXAMPLES
Untrue in the
present or future
Simple past
would + simple
form
If I had enough time
tomorrow, I would write
to my parents,
(In truth, I do not have
enough time, so I will not
write to them.)
• If I were you, I would accept their invitation.
• If Alejandra had a swimming pool, we would swim in it.
Note: Were is used for both singular and plural
subjects.

4. MEANING OF
THE “IF
CLAUSE”
VERB FORM IN
THE “IF
CLAUSE”
Untrue in the past Past perfect
VERB FORM IN
THE “RESULT
CLAUSE”
EXAMPLES
would have +
past pasticiple
If I had had enough
time, I would have
written to my parents.
(In truth, I did not have
enough time, so I did not
write to them.)
• If you had told me about the problem, I would have
helped you.
• If Kitzia had written a letter to Erika, she would have
arrived on time to the airport.

5. LET’S PRACTICE!!
Instrucctions: complete the sentences with the words in brackets to make
conditional sentences.
1. If I have enough apples, I (bake) ____________________ an apple pie
this afternoon.
2. I will fix your bycicle if I (have) __________________ a screwdriver of
the proper size.
3. Isaí would shave today if he (have) ______________ a sharp razor.
4. If Viridiana (be) ____________ in her office right now, she (answer)
______________________ the phone.
5. If I (have) ____________ enough money, I would have gone with you.

6. CONDITIONS
1. If the weather is nice tomorrow, we (go) __________________ to the
zoo.
2. If the weather were nice today, we (go) ___________________ to the
zoo.
3. If the weather had been nice yesterday, we (go)
____________________ to the zoo.