verb
ADVERB
▪ fully
▪ barely
▪
She could barely ~ what was happening to her.
▪ easily
VERB + COMPREHEND
▪ be able to , be unable to
▪ cannot , fail to
▪
She failed to ~ the seriousness of the situation.
▪ be difficult to , be impossible to
▪
It is difficult to ~ how far away the stars are.
Comprehend is used with these nouns as the object: ↑ intricacy , ↑ magnitude , ↑ meaning , ↑ nature , ↑ scale , ↑ situation , ↑ workings