Both loves you and love you are grammatically correct. For example, "He loves you," or "We love you."
i didn't understand your question exactely but if you meant to ask if ma l'amour is the correct writing of saying in English "my love" so it's not, the correct way is "mon amour"- to male and female both.
lovo you both
Both "has striven" and "has strived" are correct. "Has striven" is more commonly used in formal writing, while "has strived" is acceptable in both formal and informal contexts.
The sentence "love you both with all my heart" is grammatically correct but is missing a subject. To improve clarity, it could be revised to "I love you both with all my heart." This addition makes it clear who is expressing the sentiment.
It's correct to say 'you and her'. You and her sounds more personal and connected rather then "her and you" which sounds rather rude -------------------------------------------------------------------------------------------------------------------------- In my opinion, no. Both are incorrect. The correct grammar would be "She and I" if the "you" was referring to yourself (eg She and I agree), or "you and she" if you were talking about another person to someone else (eg I saw Elsa with you the other day, you and she were going into the post office).
"Congrats" is an abbreviation, not suitable for formal writing or polite discourse. You may say Congratulations to both of you, or -to you both.
Writing casual and writing a email are the same because you can use slang on both. http://www.writeletters.net/goodbye-love-letter.html
Both "flier" and "flyer" are correct, but "flier" is more common and should be preferred in most writing.
Both depending on what your entire sentence is. Try writing the sentence with both and reading it aloud. Whichever one sounds better go with.
Both are accepted, but "a quarter after" is preferred in formal writing.
It is almost grammatically correct but not quite.You should say: Both of you have the same hats.You could also say: You both have the same hats.