The noun collaboration can be countable or uncountable. However, in more specific contexts, the plural form can also be collaborations e.g. in reference to various types of collaborations or a collection of collaborations. ...
Can you say collaboration?
Collaboration can be either a mass noun or a count noun, depending on context. So the sentence is correct either with or without the article. "A collaboration ..." would be more appropriate if you are talking about a specific project where you work with Dr.
How do you use collaborated in a sentence?
Collaborated sentence example
- He also collaborated with Julius Oppert. ...
- He collaborated with his father in the great edition of Saadia and the edition of Abu-1Walid, and also produced a number of important editions of other Arabic writers.
