Prepositions mostly confuse me while writing. I stuck in the following sentence: These difficulties can create hurdles in implementing effective business operations that ultimately result in stagnant growth. Grammarly shows that 'in' preposition is wrong in this context. I should use 'for...

In my experience, AmE tends to retain the "to" in most such cases. There may be exceptions, but in your example, I would not remove the "to". [It is common, however, to omit "to" (ie, use the bare infinitive) in negative constructions: "You need not return it yet." But that's not what you ask...

I am not sure if the below sentences are correct. Please advice. Please move the group in batches. Please split the gourp into batches. What i am trying to express is that do it batch by batch.

Here an example sentence written by a pupil of mine: Through the British Empire, which resulted out of Britain's urge to build up its economy, Britain was connected to a lot of different countries The sentence clearly has several issues, I am solely interested in one here. I would only use...

We use the word 'man' in such context quite commonly. [Added note: To avoid ambiguity] In all these cases, I'm talking to a man. He's right there, in front of me. "Man, it's not that easy!" "Look man, don't mess with me." "Ah, bang on, man!" What if I'm talking to a woman? Can I still ...