1. P & ~(V v T)
   P & (~V & ~T)

2. P & (~Q & ~R) 
   P & (~R & ~Q)
It is also ok if you have the parentheses around the first two sentence letters or if you have the conjuncts in a different order.

3. (R & S) & ~(V v T)
   (R & S) & (~V & ~T)

4. ~(R & V)

5. ~V & ~T

6. (R -> V) & (S -> T) -> ~(R v S)
   (R -> V) & (S -> T) -> ~R & ~S

7. (P v Q) & ~(P & Q)

8. (V -> T) -> ~V

9. (R -> V) -> (T -> R & V)

10. R & ~(R -> T)