In this sentence should the word highly and trained have no hypehn between them.
"We have highly trained staff who can help you."
Grateful to know if it is ok without a hyphen and why.
No hyphen here.
From the Chicago Manual of Style:Adverbs ending in 'ly."'
Compounds formed by an adverb ending in ly
plus and adjective or participle (such as largely irrelevant
or smartly dressed
) are not hyphenated either before or after a noun, since ambiguity is virtually impossible.
This description certainly applies to 'highly trained staff.'
The ambiguity that is referred to is that of compound modifiers like 'natural-gas pipeline,' 'small-business perspectives,' and 'used-record store.'** Without the hyphen in those noun-compound modifiers, the phrase might be hard to understand.
"Highly trained staff" is clear on its own.
*The Chicago Manual of Style. 15th Edition. The University of Chicago Press. 2003
**Examples from Garner's Modern American Usage, Second Edition. Oxford University Press. 2003