This document provides examples and explanations for using the words "unless", "as long as", "provided (that)" and "providing (that)". It explains that these words can be used to indicate conditional sentences. Unless is used instead of "if...not" and means the same as "if", "except if", "only if", or "if not". As long as, provided (that) and providing (that) also express conditions and mean the same as "if" or "condition that". Examples are given to illustrate the different types of conditional sentences that can be formed using these words. The conclusion states that these words can be used at the beginning or middle of sentences, but when used at the beginning a

1. UNIVERSIDAD NACIONAL DE
CHIMBORAZO
FACULTAD DE CIENCIAS DE
LA EDUCACION HAMANAS Y
TECNOLOGIAS
ESCUELA DE IDIOMAS
STUDENTS’ NAME:
MIRIAN QUIGLA
DIANA CHAVEZ

2. UNLESS
Unless means the same as if...not. Like if, unless is followed by a present tense, a
past tense, or a past perfect tense (never by a conditional).
Unless is used instead of if...not in conditional sentences of all types.
The order of the clauses doesn't matter with sentences using unless.

3. EXAMPLE
Unless = except if, only if and if not.
The club is for members only.
You can´t go in unless you are a member.
You can´t go in except if you are a member.
You can´t go in only if you are a member.

4. TYPE 1 CONDITIONAL: UNLESS +
PRESENT TENSE
With If Equivalent with Unless
You will be sick if you don't stop
eating.
You'll be sick unless you stop eating.
I won't pay if you don't provide the
goods immediately.
I won't pay unless you provide the
goods immediately.
If you don't study dilligently, you'll
never understand trigonometry.
Unless you study dilligently, you'll
never understand trigonometry.

5. TYPE 2 CONDITIONAL: UNLESS + PAST
TENSE
With If Equivalent with Unless
If he wasn't very ill, he would be at
work.
Unless he was very ill, he would be
at work.
I wouldn't eat that food if I wasn't
really hungry.
I wouldn't eat that food unless I was
really hungry.
She would be here by now if she
wasn't stuck in traffic.
She would be here by now unless
she was stuck in traffic.

6. TYPE 3 CONDITIONAL: UNLESS + PAST
PERFECT
With If Equivalent with Unless
Our director would not have signed
the contract if she hadn't had a
lawyer present.
Our director would not have signed
the contract unless she had had a
lawyer present.
I wouldn't have phoned him if you
hadn't suggested it.
I wouldn't have phoned him unless
you'd suggested it.
They would have shot her if she
hadn't given them the money.
They would have shot her unless
she'd given them the money.

7. AS LONG AS
We use as long as to express a condition, to say that something will
happen only on condition that something else happens.

8. As long as = If or Condition that
I'll lend you the book as long as you promise to
give me it back next week.
(= If you don't promise to give the book back
next week, I will not lend you it.)

9. As long as expresses that one thing depends on
another.
You can go to the party as long as you come
back before midnight.
(= You can go to the party, but you must
promise to be back before midnight.)

10. PROVIDED (THAT) AND PROVIDING
(THAT)
Provided and providing these expressions mean IF or CONDITION THAT is the
same that AS LONG AS
Example:
Travelling by car is convenient
provided (that) you have somewhere
to park.
Travelling by car is convenient
provided (that) you have somewhere
to park.

11. No need for that
The word THAT can be omitted
Example:
Provided that the weather is fine,
we´ll have a picnic on Saturday.
Provided the weather is fine, we´ll
have a picnic on Saturday.

12. CONCLUTION
Unless, as long as and provided or
providing can be at the beginning or at
the middle but when we use at the
beginning we must use comma.

13. ACTIVITIES
1. ____ you are caught drinking, you will lose your license.
2. ________ you stop smoking, you’ll be seriously ill.
3. ____ he gets caught, he’ll go to the jail.
4. ________ she pays up, we’re going to be in a real trouble.
5. ____ we get the check today, we must bank it.
6. I will be here ______________ he is here.
7. I will come ____________ you are there.
8. You can join us ____________ you contribute.

14. 1. ______________ you have a good credit score, you can borrow the
money.
2. You are here, why you don’t play a round of poker with us?
3. You can take the day off ______________ you promise to come in
early on Monday.
4. I will buy a car ______________________that I have enough money.
5. ____________________that she studies hard, she´ll pass her exam.
6. ____________________that the bills are paid, tenants will not be
evicted.
7. ____________________that the room is clean, I don’t mind which
hotel we stay at.