Spanish language Q&A Forum

Would it be incorrect to say, "No me gustan los tatuajes y por eso no tengo nada" instead of ninguno?

Why is this sentence: Yo he llegado pronto a trabajar esta tarde? Translated as “I arrived early to work this morning” and not “I have arrived early to work this morning”? The present perfect tense includes the use of have correct?

Let's forget about our problems and let's enjoy ourselves.

Olvidémonos de nuestros problemas y disfrutemos!

-monos ("s" dropped from mos before "nos" added) used for olvidar, 

but -mos (present subjunctive) used for disfrutar.  Rule?

Hola , yo podría utilizar tambien Futuro Perfecto o Condicional Perfecto ?

- Habrán sido las siete cuando terminó por fin la reunión.

Tendríamos diez años en esa foto.

-Habríamos tenido diez años en esa foto.

Gracias

Can you technically use haber+llevado+past participle?

And if so, how does it change the meaning?

Why is ustedes used sometimes for singular subjects?

For example, Ustedes hacen una tarta de chocolate deliciosa. - is translated you make... It seems to me it should be: Usted hago una tarta de chocolate deliciosa.

What am I missing?

Hello!

Why use subjuntivo vs indicativo in this sentence? 

Una vez que ustedes firmen, no hay marcha atrás. 

I can’t imagine using subjuntivo, or maybe I’m just thinking of it as a real factual warning vs something hypothetical that I can’t imagine in real situation.