Sentence: In general, we can see an increase in total number of call minutes, and mobile calls have became significantly more popular in 2002 than in 1995, while other types of calls have ether a relatively moderate increase, as national/international telephone calls, or maintaining almost the same number of minutes in 2002 as in 1995 (local fixed line calls).

Error: have
Error type: Tense semantics

Error: have
Error type: Tense semantics