Navitasan Posted 14 years agoGrammar
Deduction/must have
Are these sentences correct:
1-If John knows where I am, he has to have talked to Merv.
2-If John knows where I am, he must have talked to Merv.
3-If John knew where I was, he had to have talked to Merv.
4-If John knew where I was, he must have talked to Merv.
Gratefully,
Navi.