Understand/clarify how to express inference/guess on an event that happened in the past.
To say "Who built Stonehenge (and why)?" in Spanish seems to be:
- Quien construirían Stonehenge?
- Quien habrán construido Stonehenge?
Are these correct? Providing they are correct:
- What is the difference in using conditional and future perfect?
- Are there other ways to express the same?
Thanks in advance. M
(Updated question based on the feedback)
Suppose we were at the time when Schliemann had not found Troy (http://en.wikipedia.org/wiki/Troy) yet, and wonder:
- We do not know the Trojan war was true, but if it was, where was Troy?
How to write/say it in Spanish? Is this correct?
- No conocemos que la guerra de Troya sea (o será?) la realidad. Pero si fuera (o es?), donde estaría (o habrá estado) Troy?
Subjuntivo or Futuro
I think Indicativo is to describe a fact/what actually happened. Back then, 'if Trojan war was true' was not verified. So I suppose Subjuntivo or Futuro is to use, but not sure of the difference. Could someone explain?
Future Perfect or Conditional or Subjuntivo Imperfecto
Not knowing if it did exist, asking "Where was Troy" is presenting a hypothetical question about the past. In such a case, which one is to use?
- Future perfect
- Subjuntivo imperfecto
Conditional looks natural to me to associate with 'si'. I think Future Perfect can be used as it (in my understanding) is about 'possibility in the past'. Also as it is a 'supposition about the past', Subjutivo Imperfect may be OK.
Could someone explain which one is to use or what is the indication by each tense?
Thanks in advance, M