The document discusses the conjunctions "unless", "as long as", "provided" and "providing". It explains that "unless" is used in conditional sentences instead of "if...not" and follows the same tense patterns as "if". It also defines "as long as" and "provided/providing" as expressing conditions, with "as long as" meaning "if" and "provided/providing" having the same meaning as "as long as". Examples are provided of the different types of conditional sentences that each conjunction can be used in.

1. 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.
(Edufind.com, n.d.)
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.
(Grammar)
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.

2. 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.
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.
(Edufind.com, n.d.)
Only we us unless in warnings for example:
Unless you work much harder, you don’t pass the exam.

3. 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.
(Speakspeak, n.d.)
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.)
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.)
(Speakspeak, n.d.)
PROVIDED (THAT) AND PROVIDING (THAT)
Provided and providing these expressions mean IF or CONDITION THAT is the same
that AS LONG AS for 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.
(Speakspeak, n.d.)
No need for that
The word THAT can be omitted for 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.
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.

4. Bibliografía
Edufind.com. (s.f.). Edufind.com. Recuperado el 01 de noviembre de 2015, de
Edufind.com: http://www.edufind.com/english-grammar/using-unless/
English, L. (s.f.). Learn English. Recuperado el 01 de noviembre de 2015, de Learn
English: http://www.ecenglish.com/learnenglish/how-use-unless-and-as-long
Grammar. (s.f.). Unless. As long as, Provided/Providing. En G. VI, Grammar VI (págs. If,
203- Units 25, 38-40).
Speakspeak. (s.f.). Speakspeak. Recuperado el 01 de noviembre de 2015, de Speakspeak:
http://speakspeak.com/resources/english-grammar-rules/various-grammar-rules/as-
long-as-provided-providing

5. 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.
9. ____________ you have a good credit score, you can borrow the money.
10. You are here, why you don’t play a round of poker with us?
11.You can take the day off ___________ you promise to come in early on Monday.
12.I will buy a car ________that I have enough money.
13._________that she studies hard, she´ll pass her exam.
14.__________that the bills are paid, tenants will not be evicted.
15.__________that the room is clean, I don’t mind which hotel we stay at.

6. ANSWERS
1. If
2. Unless
3. If
4. Unless
5. If
6. As long as
7. As long as
8. As long as
9. As long as
10. As long as
11. As long as
12. Provided/providing
13. Provided/providing
14. Provided/providing
15. Provided/providing

7. UNIVERSIDAD NACIONAL DE CHIMBORAZO
FACULTAD DE CIENCIAS DE LA EDUCACION HUMANAS Y TECNOLOGIAS
ESCUELA DE IDIOMAS
Name:
Class: Date:
OBJECTIVE: To know what is the meaning and uses of unless, as long as and provided or
providing and when we must use them.
TIME: 10 MINUTES (1 mark of each one)
INSTRUCTION: Write a new sentence with the same meaning. Use unless in your
sentences.
1. You are allowed into the club only if you are a member.
_____________________________________________
2. I am going to the party only if you go too.
_____________________________________________
3. The dog will attack you only if you move suddenly.
_____________________________________________
4. He´ll speak to you only if you ask him a question.
_____________________________________________
5. The doctor will see you today only if it´s an emergency.
_____________________________________________
2. CHOOSE THE CORRECT WORD OR EXPRESSIONFOR EACH SENTENCE:
6. You can use my car unless/as long as you drive carefully.
7. I don´t mind if you come in late unless/as long as you come in quietly.
8. I don´t watch television unless/as long as I’ve got nothing else to do.
9. Children are allowed to use the pool unless/provided they are with an adult.
10. We can sit here in the corner unless/as long as you´d rather sit over there by the
window.