Common collocations are usually best

Here's part of today's blog lesson on my new site ielts study:

When we’re talking about collocations, the most common and natural choice is usually the best. You want to use the collocation that a native speaker would use, rather than something unusual that sounds strange or wrong.

Compare the sentences below, and answer the questions that follow.

– The objective was to RAISE funds.
– The objective was to HAVE funds.
– The objective was to AMASS funds.

1. Are the three sentences grammatically correct?
2. Which collocation do you think is more common and more natural?
3. What is your opinion of the other two collocation choices?

Members can comment below the lesson over on the new site.