REVIEW OF GRAMMATICAL AND SYNTACTICAL STRUCTURES:

• YOU ARE ALWAYS LEAVING THE LIGHTS ON: IT'S A COMPLAIN.
• YOU ALWAYS LEAVE THE LIGHTS ON: IT'S A FACT.

•  IF YOU'LL OFFER US A LARGER DISCOUNT, WE'LL PAY WITHIN TEN WORKING DAYS. USING will THE SENTENCE IS MORE FORMAL.

• HAD WE NOT SEEN THE ROCK IN TIME... : IF WE HADN'T SEEN THE ROCK IN TIME...

•  HE TRIED TO STOP US PLAYING BUT HE COULDN'T, THE GAME HAD  ALREADY STARTED.
•  HE TRIED TO STOP US TO PLAY BEFORE WE ARRIVE TO THE PARK.

•  HE SUGGESTED THAT I SPOKE / SHOULD SPOKE TO THE DIRECTOR. (I'M THE ONE SPEAKING WITH THE DIRECTOR)
•   HE SUGGESTED SPEAKING WITH THE DIRECTOR. (WE DON'T KNOW WHO IS THE THE SPOKESPERSON).

• IT MUST HAVE BEEN JACK YOU SPOKE TO: 100% SURE HE WAS JACK.
• IT CAN'T HAVE BEEN JACK YOU SPOKE TO: 100% SURE HE WASN'T.

• WE NEEDN'T HAVE TAKEN THE UMBRELLA: NO NECESITABAMOS HABER TRAIDO EL PARAGUAS PERO LO TRAJIMOS. THERE WAS NO NEED TO TAKE THE UMBRELLA.
• WE DIDN'T NEED TO TAKE THE UMBRELLA BUT WE HAD TO TAKE A  VELVET COAT. WE TOOK THE UMBRELLA, BUT THERE WAS NO OBLIGATION TO DO IT EVEN WE DID.
• NEEDN'T VS DON'T NEED TO IN BBC.

•  THE MAYOR CAUSE - THE MAIN REASON. (BE CAREFUL FIX EXPRESSIONS)

• NO SOONER HAD WE ARRIVED AT THE BAR THAN IT CLOSE: AS SOON AS WE ARRIVED TO THE BAR IT CLOSED. (AWESOME INVERSIONS)

• I WAS GOING TO SHUT / I WAS ABOUT TO SHUT.