Tengo que estudiar para el examen de mañana.

I have to study for tomorrow's exam.

One must study for tomorrow's exam.

I don't have to study for tomorrow's exam.

I should studyfor tomorrow's exam.

No tengo que ir a la oficina hoy, puedo trabajar desde casa.

I don't have to go to the office today; I can work from home.

It's not necessaryto go to the office today; I can work from home.

I must not go to the office today; I can work from home.

I should not go to the office today; I can work from home.

Hay que reciclar para cuidar el medio ambiente.

One must recycle to protect the environment.

You have to recycle to protect the environment.

You should recycle to protect the environment.

Recycling is good for protecting the environment.

Debes comer más verduras para una dieta equilibrada.

You should eat more vegetables for a balanced diet.

You have to eat more vegetables for a balanced diet.

One must eat more vegetables for a balanced diet.

Eating more vegetables is good for a balanced diet.

No debes hablar con la boca llena.

You should not talk with your mouth full.

It is not good to talk with your mouth full.

You don't have to talk with your mouth full.

One must not talk with their mouth full.

Es necesaria la paciencia para enseñar a un niño.

Patience is necessary to teach a child.

One must be patient to teach a child.

We have to be patient to teach a child.

We should be patient to teach a child.

Son necesarios los libros para estudiar.

Books are necessary for studying.

We don't have to buy books to study.

Es bueno el ejercicio para la salud.

Exercise is good for your health.

You must exercise to have good health.

One must exercise to have good health.

Exercise is necessary for your health.

Son buenas las risas para aliviar el estrés.

Laughter is good for relieving stress.

Laughter is necessary for relieving stress.

One must laugh to relieve stress.

We have to laugh to relieve stress.

Es necesario beber ocho vasos de agua al día.

It is necessary to drink eight glasses of water a day.

You have to drink eight glasses of water a day.

You should drink eight glasses of water a day.

It is good to drink eight glasses of water a day.

Es bueno ayudar a quienes lo necesitan.

It is good to help those in need.

You have to help those in need.

It is necessary to help those in need.

Expresiones para expresar necesidad, obligación y consejos

Se sabe que los FTs tienen un papel muy importante en la regulación transcripcional de la embriogénesis somática ya que se han identificado diferentes genes FT que se expresan diferencialmente en cultivos embriogénicos. La expresión de genes como WUS, LEC, FUS y genes relacionados con auxinas y citoquininas son reguladores muy importantes del desarrollo de cada etapa. Es necesario seguir identificando genes que tienen un papel decisivo en la reprogramación de células somáticas para comprender los mecanismos genéticos involucrados en la ES .

Expresiones para la salud personal

Identidades Expresiones para la salud personal (text)

Expresiones

Expresiones Utiles 1 & 2

Expresiones del Imperfecto

Expresiones de la Clase

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