ALL + preposition + noun phrase
At A2, in the Oxford learner’s dictionary, when ‘All’ is an adverb, it can mean ‘completely’. Also, adverbs pre-modifying prepositions are found at A2, B1 and C1 in the English Grammar Profile. We can search for ALL + prepositional phrases in iWeb corpus with: _DB _II _A _NN *not every result will be ‘all‘ as …