present progressive

1/ Help! sentence is 'by the time he gets there everyone will have left' is the PRESENT PROGRESSIVE answer ' by the time he gets there everyone will be leaving' ???
2/ Same sentence - is the PRESENT SIMPLE answer 'by the time he got there everyone was leaving' ????
3/ Same sentence -- is the PAST SIMPLE answer 'by the time he got there everyone had left' ???
4/ Simple explanations for PRESENT PROGRESSIVE[=present continuous]
" " " PRESENT SIMPLE
" " " PAST SIMPLE

Appreciate help!!

[RonBee]

Originally Posted by mjs

1/ Help! sentence is 'by the time he gets there everyone will have left' is the PRESENT PROGRESSIVE answer ' by the time he gets there everyone will be leaving' ???

I would say that the first is future perfect and the second is future progressive.

Originally Posted by mjs

2/ Same sentence - is the PRESENT SIMPLE answer 'by the time he got there everyone was leaving' ????

I would say it is past progressive.

Originally Posted by mjs

3/ Same sentence -- is the PAST SIMPLE answer 'by the time he got there everyone had left' ???

I would say it is past perfect.

[RonBee]

Verb tense: http://www.usingenglish.com/glossary/tense.html

[RonBee]

Present simple: http://www.usingenglish.com/glossary...nt-simple.html

[RonBee]

Present progressive:
http://www.infoplease.com/ipd/A0602168.html
http://dictionary.reference.com/sear...%20progressive
http://ultralingua.net/results.html?lookup_action=en|english|english&look up_letters=present+progressive

[RonBee]

Past Simple:
http://www.usingenglish.com/glossary/past-simple.html