Sentence examples for proved difficult to track from inspiring English sources

Baghdadi in particular had proved difficult to track.

In publishing a table titled "Hunger and Homelessness in America's Cities: A 16-Year Comparison of Data," however, the mayors' survey suggests an annual percentage increase that proves difficult to track.

The sources are unnamed and the original report is proving difficult to track down; the only copy of it seems to be in CrackBerry's possession (copied below).

He added that his organisation has a presence in 40 of the 82 municipalities in the state, though official statistics to independently verify this claim have proven difficult to track down. .

He added that his organization has a presence in 40 of the 82 municipalities in the state, though official statistics to independently verify this claim have proven difficult to track down. .

Genocide has proved difficult to prosecute.

The effect proved difficult to measure.

The latter aim proved difficult to enforce.

Neutrality proved difficult to maintain, though.

Alas, it proved difficult to find.

Yet reform proved difficult to implement.