ohh those poor confused souls...
Ok, you started it
there are 4 groups of verb tenses in the English language. This applies both to Active Voice and Passive Voice but I will only touch Active Voice now.
1) Indefinite, aka Simple - there's a Future, a Present and a Past
simple fact or action, once or repeated
Present Indefinite (Simple) - I go to school Monday to Friday
Future Indefinite (Simple) - I will go to school next year
Past Indefinite (Simple) - I went home yesterday after work and ate dinner. Or, using the original example - we had meetings about this issue
2) Perfect - it also has it's Future, its Past and its Present
Something happened before something else, be it the moment of speech (now, as we are speaking about it) or a defined moment in the present, future of past
Present Perfect - I have spoken to him about this issue today (it has already happened by now as we are talking about it, i.e. by the moment of speech)
Future Perfect - I will have spoken to him about it tomorrow before I go to work
Past Perfect - I had spoken to him about this before we went to the meeting together. Or, using the original example - we had had meetings about this issue (implying that something else happened later, prior to which we had had meetings and this defined the moment in the past before which the meetings had happened)
3) Continuous - a Future, a Present and a Past
an action that is in the processing of happening, i.e. lasting for a while
Present Continuous - I am writing this sentence in the Australian Frequent Flyer thread right now.
Future Continuous - I will be having meetings to discuss this issue for a week next month in Brisbane
Past Continuous - I was walking home when I got stopped by the police.
4) Perfect Continuous - it's got a Present, a Past and a Future
it's a chimera, a strange hybrid. On the one hand it's something that has already happened but on the other hand it's still continuing in a sense. It combines finite and infinite features, basically describing something that started, is still happening; or finished before a moment in the past after lasting for a while; or will last for a while in the future before something else will happen
Present Perfect Continuous - I have been living in Sydney for 12 years by now.
Future Perfect Continuous - I will have been discussing this issue for about an hour by 11 am tomorrow morning if we start at 10 am tomorrow.
Past Perfect Continuous - I had been living in Russia for 37 years before I moved to Sydney in 2003 (this is true).
Does it make sense? If it doesn't PM me and I will give you a private lesson but this is going to cost you