"if I was" or "if I were" As my understanding, "if I were" means that it can't be true. For example, If I were you, I would study French. We use "if I were you", because I can't be you in any case, it can't be true definitely. Well, I can't distinguish "if I were" and "if I was". If I were you, I would go shopping tomorrow. (Currently the listener hasn't decided if he would go shopping or not) If I were you, I would have gone shopping yesterday. (Currently the fact that the listener hasn't gone shopping has happened.) If I was wrong, I would be sorry. (Currently I'm not sure if I was wrong or not) If I were wrong, I would have been sorry. (Currently I have known that I was right, the fact that I was wrong hasn't happened). Am I right about the understanding of these four sentences? Furthermore, I'm not sure the sentence "If I were you, I would go shopping tomorrow." is correct, should I say "If I were you, I would go shopping tomorrow." or "If I was you, I would go shopping tomorrow."?

"il est" ou "c'est" Disons que je suis en train de parler avec queleuq'un, je veux présenter une personne, qui n'est pas avec nous, c'est-à-dire, la personne qui je veux présenter n'est pas devant nous deux. Alors, je dois dire "Il s'appelle Titi, Il est mon ami" ou bien "Il s'appelle Titi, c'est mon ami"?

Which is more natural？ 1.I shouldn't have lied to her at first. 2.I shouldn't have lied to her in the first place.

What's the difference between SINCE and BECAUSE？ What's the difference when they are used to give the reason for something？

Why use SPEAK rather than TALK？ We had a little quarrel one day last month，and after that day，we did not SPEAK to each other for a whole week.

How do we understand this sentence "I co-wrote, acted, sang and danced in an original musical comedy produced by the Associated Students. It played in the largest auditorium to standing-root-only houses." I can not understand what "It played in the largest auditorium to standing-root-only houses" means, especially this "to".

that person is really immoral. For example, he/she . . . I read an essay: https://pdfs.semanticscholar.org/3941/c4f373ba834cb8004272ae51e03c3c83188e.pdf It is talking about the different immorality between the East and the West. It mentioned an example: We have a sentence: that person is really immoral. For example, he/she . . . If a Chinese fills this sentence, he would probably say he/she makes lots of noise, or he/she litters etc. If a Western fills this sentence, he would probably say he/she is stealing, or he/she is harming others etc. I only want to know if this is true.

Can we say "need improving" I always said things like "My English skill needs to be improved". Today I saw a sentense: My English skill needs improving. I thought this was wrong but after googling "need improving", I've no idea now... https://www.linguee.fr/anglais-francais/traduction/needs+improving.html You can see there are lots of "needs improving". If we can say "need improving", what is the difference between "need to be improved" and "need improving"?

Comment dire ça en français J'ai besoin d'un adjectif, qui signifie que l'eau ne peut pas y coller. J'ai trouvé une expression: étanche à l'eau, mais je ne pense pas que ce soit ce que je veux. Parce que "étanche à l'eau" veut dire une chose, tel que une montre, qui peut arrêter l'eau d'y entrer. Alors que je veux dire que l'eau ne peut pas coller sur quelque chose. Par example, j'ai une chose X, et je plonge ce X dans de l'eau, ensuite je le sors de l'eau, mais il y a pas de l'eau sur cet objet X. Maintenant, on peut dire: le objet X est _____. J'ai peut-être besoin d'un mot comme anti-hydro?