Which is the correct grammar: "I will appreciate if you.." or "I would appreciate if you.."?

Both "I will appreciate if you..." and "I would appreciate if you..." can be grammatically correct, but they differ in formality and the tone they convey. However, the more idiomatic and polite way to express these sentiments is by adding "it" to the sentence, making them "I will appreciate it if you..." and "I would appreciate it if you..."123.

• "I would appreciate it if you..." is generally considered more polite and formal. It conveys a sense of courtesy and is commonly used in both written and spoken English23.

• "I will appreciate it if you..." can sound less polite and might imply a sense of expectation or demand. It is less commonly used in formal contexts but can be appropriate in informal situations23.

In terms of grammar, both forms are acceptable, but "I would appreciate it if you..." is more frequently used and recommended for formal communication12.