Tenses Revision

ANSWERS 1: HAVEN'T MET MARION SINCE || HAVE NOT MET MARION SINCE
EXPLANATION
PAST SIMPLE => PRESENT PERFECT
More Examples:
When did you leave university? => How long ago did you leave university? WHEN + PAST SIMPLE => HOW LONG AGO + PAST SIMPLE
When did you leave university? => How long is it since you left university? WHEN + PAST SIMPLE => HOW LONG IS IT SINCE + PAST SIMPLE
When did you begin playing football? => How long have you been playing football? PAST SIMPLE => PRESENT PERFECT CONTINUOUS

ANSWERS 2: WILL HAVE FINISHED || 'LL HAVE FINISHED
EXPLANATION
FUTURE PERFECT => SUB + WILL + HAVE + PAST PARTICIPLE
Common Errors:
Tomorrow, five years will have passed from the time of the accident. V
Tomorrow, five years will has passed from the time of the accident. X

ANSWERS 3: UNTIL KEVIN HAD ARRIVED BEFORE
EXPLANATION
PAST PERFECT => UNTIL + PAST PERFECT + BEFORE + PAST SIMPLE
More Examples:
They had been engaged for over three years before they got married. V PAST PERFECT + BEFORE + PAST SIMPLE
The party couldn't start until Mark had arrived. V PAST SIMPLE + UNTIL + PAST PERFECT

ANSWERS 4: DOESN'T USUALLY SPEND || DOES NOT USUALLY SPEND
EXPLANATION
PRESENT SIMPLE + USUALLY => REPEATED ACTIONS
Common Errors:
She doesn't usually eat bread with cheese for breakfast.V
She usually doesn't eat bread with cheese for breakfast. X

ANSWERS 5: ARE YOU GOING TO DO
EXPLANATION
GOING TO => PLANS AND INTENTIONS
More Examples:
John is going to revise his Spanish all evening. V
We are going to have a party this weekend. V

ANSWERS 6: WILL HAVE BEEN STUDYING || 'LL HAVE BEEN STUDYING
EXPLANATION
FUTURE PERFECT CONTINUOUS => SUBJECT + WILL + HAVE + BEEN + ING + FOR
More Examples:
In April next year, Alex will have been studying for three years. WILL + HAVE + BEEN + ING + FOR
By next week Ann will have been working in this shop for ten years.