baguette
beguile
dengue
disguise
guarantee
guard
Guernica
guernsey
guess
guest
Guevara
Guiana
guide
guile
guild
guillotine
guilt
guinea
Guinness
guise
guitar
guy
languor
Portuguese
roguish
baguette
beguile
dengue
disguise
guarantee
guard
Guernica
guernsey
guess
guest
Guevara
Guiana
guide
guile
guild
guillotine
guilt
guinea
Guinness
guise
guitar
guy
languor
Portuguese
roguish
Isn’t the reason for the u following the g in many words in order to separate the e or i thus keeping the g with a hard sound.
Yes, I think that is the reason for it, but rather than trying to give my clients verbal rules to explain this kind of thing, I just treat it as a spelling alternative sometimes used before the letter “i” and “y” since a letter g before these letters is typically pronounced “j” (but not always, see the last column of this list: http://www.spelfabet.com.au/spelling-lists/sorted-by-sound/g/g-as-in-got).
some words like language, extinguish, and anguish… has /gw/ sound, it’s not in the list
That’s because they are on this list: https://www.spelfabet.com.au/spelling-lists/sorted-by-sound/w/u-as-in-quack. The /g/ is spelt normally, it’s just the /w/ sound that has an unusual spelling, though it’s the usual spelling after a velar plosive sound (/k/ or /g/). Hope that makes sense. Alison