Cannot/are unable to help but has actually been condemned by some as being the ungrammatical version of can't/can’t help Help and aid, to some degree extra formal, suggest Specifically a furthering or seconding of another's efforts. Support indicates a more Energetic helping; aid indicates less want and fewer help. https://hbr-case-study-analysis56709.blogadvize.com/45297382/the-best-side-of-harvard-case-study-help