I want to go to the beach.
Quiero ir.
I'm afraid I'll arrive late.
Temo or Tengo miedo de / llegar
The government denies that the water is contaminated.
niega / sea
The witness will talk with the journalist provided that she doesn't take (sacar) any photos.
El testigo hablará con la periodista con tal de que no saque fotos.
We always drink hot chocolate when it is cold.
(to be cold = hacer frío)
Siempre tomamos chocolate cuando hace (hacer) frío.
I know a guide who speaks English
Conozco a un guía que habla inglés.
It's best that he knows the truth.
Es mejor que sepa
I'm sorry that you can't come tomorrow.
Siento que no puedas...
It's probable that there will be fewer forests and jungles in the future.
Es probable / haya
Call a cop in case you see someone suspicious.
Llama a un policía en caso de que tú veas a alguien sospechoso.
Air pollution will be a big problem until we stop (dejar) using so many cars.
La contaminación del aire va a ser un problema grave hasta que dejemos (dejar) de usar tantos carros.
I'm looking for any student who speaks Spanish.
Busco cualquier estudiante que hable Español
I suggest to him that he goes home.
Le sugiero que vaya
It surprises him that Juan is so young.
Le sorprende / sea
I don't doubt that the government will resolve the problem.
No dudo / resuelve or resolverá.
My children are going to leave everything clean before they leave the park.
Mis hijos van a dejar todo limpio antes de salir (salir) del parque.
After you drink your soft drinks, recycle the bottles.
Después de que tomen/beban sus refrescos, reciclen las botellas.
I know someone who studies even more than you!
¡Conozco a alguien que estudia aún más que tú!
It is not necessary to clear the table
No es necesario / quitar
It bothers me that people don't recycle plastic.
Me molesta / recicle or reciclen
Perhaps it will be sunny tomorrow.
(to be sunny = hacer sol)
Quizás or tal vez / haga
The fish in the oceans will die unless we make laws to protect them.
Los peces de los océanos van a morir a menos que hagamos (hacer) leyes para protegerlos.
They will contaminate the river when they build the new building.
Contaminarán el río cuando construyan el nuevo edificio.
I don't know anyone who sleeps as much as James.
No conozco a nadie que duerma tanto como James.
They beg us not to feel bad.
Nos ruegan / nos sintamos
We are happy that you like the flowers.
Nos alegramos de que / te gusten
There is no doubt that the students felt bad yesterday.
No hay duda or No cabe duda / se sintieron
You should call Francisco before you lie down.
Debes llamar a Francisco antes de acostarte (acostarse).
As soon as I saw Mariela, I knew instantly what happened.
Tan pronto como vi (ver) a Mariela, supe lo que pasó.
Can you recommend a hotel that is near the coast?
¿Me recomienda usted un hotel que esté cerca de la costa?