Today I want to go to (the)...
I want to go to the park and I want to play.
it means: are you going to the movie theater today
ni, ni
You would say "Vamos al mercado". This could be translated as "We go to the market", "We are going to the market", or "Let´s go to the market". It all depends on context and the oinion of the translator.
al rato te digo
I want to go to the park and I want to play.
Hoy VA al mercado. - Today you are going to the market. Hoy voy al mercado. - Today I am going to the market.
quiero ir al cine
Quiero ir al cielo.
no quiero hablar al respecto
it means: are you going to the movie theater today
Te quiero ver al rato.
No quiero ir al cine ni al museo.
No quiero ir ni al cine ni al museo
ni, ni
Hoy mi hijo nececita ir al casa
You can either say "Si, voy al cine hoy" (Yes, I'm going to the movies today) or "No, no voy al cine hoy" (No, I'm not going to the movies today).