The phrase "we managed to convince" is correct and usable in written English.
You could use it to describe the successful persuasion of a person or group of people. For example, "After a lengthy discussion, we managed to convince the school board to adopt our policy proposal."
We managed to convince him to create one more shipment".
"But, being organised, we managed to convince several farmers to donate land back".
Eventually, we managed to convince people at the NHS that we needed mobile phones.
We managed to convince the big banks they had that responsibility and that their reputation rested on it.
With some excellent lawyers, we managed to convince the government to acknowledge that the seas were a resource that they have to manage for the public benefit.
We managed to convince almost every national paper of our position, and on 13 October 2008, an overwhelming defeat in the House of Lords prompted the government to drop the proposals.
"We totally look like lost tourists". We manage to convince him we're locals and explain that we are on a hunt for street art.
"The people who organized the visit told me, 'Ah, we really managed to convince him that we are using the taxpayers' money well.' " Sensenbrenner returned to Washington and set out to insure that ITER would never be built.
"I really knew that it was going to happen when our lawyers wrote the statement of claim, which meant that we had managed to convince them that we had a strong case".
"I really knew that it was going to happen when our lawyers wrote the statement of claim, which meant that we had managed to convince them that we had a strong case". When the case was settled, Aviva was relieved.
We are very pleased that we have managed to convince someone who was coveted and contacted by many top clubs to come to Bayern". Heynckes, who had steered Bayern to a nine-point lead in the Bundesliga at the start of the winter break – in his third spell at the club – had already indicated his intention to retire when his contract expires on 30 June.
