Appreciate means" value at true worth , understand and rise in value .
How can you appreciate your time? By spending more of it. Doing things makes it scarce. All scarce things are appreciated.
Both are possible. I appreciate you sending me your proposal.I appreciate your sending me your proposal.In terms of grammer: Sending is, I think, the continuous form of the verb in the first...
poorly worded, try again
Depreciate.