With regard to is the correct phrase. An economical writer could just as easily shorten the phrase to regarding, or its synonyms concerning and considering. While these versions are all correct, regarding or the prepositions in, about, and for are simpler, and therefore preferable in most situations.
We can see a similar trend in favor of in regard to over in regards to: To see in regard to vs. In this post, I will compare with regard to vs. This phrase indicates that the writer is referring to the subject of the sentence, like in these examples: With regard to the bomb, I think we should only deploy it preemptively once we know the enemy intends to bomb us, as well.
Usually, a preposition is one word, and a prepositional phrase contains the preposition and its associated object, like in the bathtub or outside the window. It is the grammatically correct version of the phrase.
With regard to preposition my watch object With regard to preposition your earlier statement object You may occasionally hear a speaker or writer use with regards to, but as we shall see, you yourself should avoid doing so at all costs.
The singular versions of both these phrases are preferred in formal writing situations. Then, I will provide a mnemonic device to tell the difference between them. Trick to Remember the Difference If you must use either of these phrases, the singular in regard to is better than in regards to, which is considered an error.
Oftentimes, the simpler regarding can be substituted. Indeed, the chart below shows that with regards to is not only grammatically inferior, but far less common, as well: This chart graphs with regards to vs.
With regard to is a useful phrase, but it can be unnecessarily wordy.