no estudies
'No....' is the invariable start of a negative command, followed by the subjunctive of the verb, so, e.g. 'No hables' (Do not speak)
Positive command: "come", negative command: "no comas".
It is already a negative tu-form polite command: No me digas el precio.No me di el precio - informal, impolite
I am happy when i can put a smile on your face
pon tu lapicero abajo
Yo puedo poner una sonrisa mas grande si tu tambien me gustas
Translation: "You are going to help your mom set the table."
(Tu) Entiendes
Ponte is an informal affirmative command. The verb is: poner: to put/place. Ponte means: Place yourself.... It is an incomplete phrase.
Amuse-toi !
No se los/las entra = don't bring them in to him (female/male 'them') -or- No se los/las trae -or- No se los/las lleva