English Language Learners Stack Exchange is a question and answer site for speakers of other languages learning English. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I really wonder and want to learn why actually the bold word "contributing" ending with -ing form in the following sentence. Shouldn't be like ", thus they contribute to enhanced productivity."?

Available MATLAB features and packages help programmers to focus on problem solving and allow high expressiveness when dealing with matrix computations, thus contributing to enhanced productivity.

share|improve this question
up vote 2 down vote accepted

The version with the -ing form has the same sense as your rewrite. The only difference is the syntactical relationship between two sentences.

  1. Available MATLAB features [...] help programmers [...] and allow high expressiveness [...].
  2. Thus they contribute to enhanced productivity.

Your version is a complete sentence, which must stand apart from the previous sentence: a period or a coordinating conjunction or a semi-colon must come between them.

However, it seems that the author wants to make that second sentence the climax of a single longer sentence. To accomplish this he rewrites it as a subordinate clause:

  • The finite (tensed) form contribute becomes the non-finite form contributing
  • The subject they is deleted because it is understood to be the same as the subject of the ‘superordinate’ sentence in which the subordinate clause is now ‘embedded’.
share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.