precisar » to need
partir
to leave, depart
euparto
você, eleparte
nóspartimos
vocês, elespartem
Complete conjugation.
PRECISAR often gets followed by a de when talking about needing SOMETHING.
Eu preciso de você! (I need you!)
When you are talking about needing TO DO something, no de is required.
Eu preciso correr. (I need to run.)