diff --git a/icse2018/content/04-methods.tex b/icse2018/content/04-methods.tex
index a47717d..da8bce0 100644
--- a/icse2018/content/04-methods.tex
+++ b/icse2018/content/04-methods.tex
@@ -72,7 +72,7 @@ We divided the UnB development team into two groups of target participants
 according to their roles during the project: \textit{UnB Interns} and
 \textit{Senior Developers}. For each group, we designed an online survey with
 topics related to project organization, development process, communication and
-relationship between members, acquired knowledge and experience with open
+relationship between members, acquired knowledge, and experience with open
 source projects. We interviewed also two \textit{MPOG analysts} who directly
 interacted with the development team and project development process. The
 interview questions could be classified into four parts: Professional profile;
@@ -80,20 +80,20 @@ Organization, communication and development methodologies in the context of
 government and project; Satisfaction with the developed platform; Lessons
 learned.
 
-We sent the link of the online survey through emails to 42 UnB interns
+We sent the link to the online survey through emails to 42 UnB interns
 (undergraduate students), who participated in any time of the project as
-developer receiving scholarship. We received a total of 37 responses. Their
+developer receiving a scholarship. We received a total of 37 responses. Their
 average age is 25 years old and 91.9\% of them are male. Currently, 35.1\%
-continue at university as undergraduate or graduate students, 18.9\% work as
-developer in a small company and 18.9\% in medium or large companies, 10.8\%
+continue at the university as undergraduate or graduate students, 18.9\% work as
+a developer in a small company and 18.9\% in medium or large companies, 10.8\%
 are entrepreneurs, 8.1\% are unemployed and the others work as teachers or
 civil servants. 43.2\% said the SPB project was their first experience with
 open source software.
 
-We also sent the link of the online survey through emails to eight senior
+We also sent the link to the online survey through emails to eight senior
 developers (IT professionals). All of them answered the questionnaire.
 Their average age is 32 years old and 87.5\% are male. They have an average of
-11 years of experience in the IT market, and currently 62.5\% of respondents
+11 years of experience in the IT market, and currently, 62.5\% of respondents
 are company employees, 37.5\% are freelance developers, 25\% are master's
 degree students and 25\% entrepreneurs. They have worked on average in 5
 companies and participated in 4 to 80 projects. They participated in this
@@ -111,11 +111,11 @@ publicly available on the SPB platform. We collected from the repository
 manager tool of the platform all open issues and commits related to the main
 repository of the platform, that is, the development repositories of the
 integrated software were not considered.  For issues, we collected project
-name, author of the issue, opening date, issue title, and number of comments.
-We also collected informations about total open issues, total commits,
-different authors of issues, total of different authors of issues, total of
-comments, authors of comments, total of authors other than comments.  During
-the period from April 2015 to June 2016, 879 issues was opened by 59 distinct
+name, author of the issue, opening date, issue title, and the number of comments.
+We also collected information about total open issues, the total commits,
+different authors of issues, the number of different authors of issues, the number of
+comments, authors of comments, the number of authors other than comments.  During
+the period from April 2015 to June 2016, 879 issues were opened by 59 distinct
 authors with a total of 4,658 comments and 64 distinct commentators. The
 development team made 3,256 commits in the repository provided by SPB platform.
 
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