No pisar el pasto.

Pourquoi chaque mot est à sa place

1. 1
   On signs, no + infinitive gives a general instruction to everyone: No fumar. No tocar. Negative imperative and imperative with pronouns →
2. 2
   el pasto = grass in Latin America (Spain: el césped). Pisar takes a direct object.

• No pises el pasto.
• Prohibido pisar el césped.