Question

1. My dog spends most of the time at home.

2. My dog spends most time at home.
(Are both the same?)

3. He got married to Susan in 2007.
4. He was married to Susan in 2007.
(Are both the same? Does #4 mean 'action' or 'state'?)

Answer 1

Yes, 1 and 2 mean the same, but 2 is very awkward. 1 is best. And, yes, 3 and 4 mean the same. Both are "action" in that they participate in the marriage ceremony in 2007. To indicate the state of being married, one would say that he and Susan are married, or that his is married to Susan.