The phrase "and was contributing" is correct and usable in written English.
It can be used to describe an ongoing action or involvement in a particular activity or project in the past.
Example: "During the meeting, she shared her ideas and was contributing to the discussion on how to improve our marketing strategy."
Alternatives: "and was participating" or "and was adding".
He had started a few novels, and was contributing occasionally to Tatler, a magazine, then having its day, that allowed middle-class readers to eavesdrop on a version of smart, funny talk between toffs.
In 1981, the year Mr. Ellsworth stepped down as treasurer, the organization's East Coast division, in New York, had annual revenues of $4.5 million and was contributing $1 million a year to the international budget in London.
In the music industry people often talk about splitting songwriting up "Nashville style" which means that everyone who was in the room when the song was written and was contributing in some way gets an even cut, which is great for a collaborative songwriting session where something starts from scratch, but a little tougher when someone brings in a mostly written song.
The p24 antibody was obtained from the AIDS Research and Reference Reagent Program and was contributed by Bruce Chesebro.
But he is averaging 20.2 minutes and is contributing.
"India constitutes 17% of [the] world's population and is contributing less than 2.5% of greenhouse gas emissions.
Today, the senator said he would not back down on those views, even though many Hollywood executives and performers are Democrats and are contributing heavily to the campaign.
There's a realisation that the tax system for pubs is unfair and overly burdensome and is contributing to their closure.
Because of the weak leasing market, he said, landlords are offering longer periods of free rent and are contributing more money to interior construction.
While our highly decentralized structure may make perfect sense to us, it is incomprehensible to our audiences and is contributing to fragmentation".
The Republicans, who have a six-seat edge in the Senate, do not want their strength eroded and are contributing to Mr. Goodman's campaign through the Senate Campaign Committee.
