"I have communicated" is a grammatically correct and usable part of a sentence in written English. It is a way of describing a process that has already taken place, and therefore can be used in the past tense. For example, "I have communicated with my brother about our plans for the weekend."
I have communicated with her through her publishers.
"Glen and I have communicated a lot in the last week," Hedberg said from Stockholm yesterday.
As I have communicated my views on this point to the society through Mr. Bruce, a detailed reply may be unnecessary.
I have communicated directly with President Botha to insure that he and his Government are aware of my deep feelings about this.
In a statement to the Daily Mail, Weiner said, in part: "I have repeatedly demonstrated terrible judgement about the people I have communicated with online and the things I have sent.
I have communicated this decision with these counties in letters detailing the criteria I used in making my judgments and the application of these criteria to the stated circumstances.
LeBlanc TW, Temel JS, Helft PR. "How Much Time Do I Have?": Communicating Prognosis in the Era of Exceptional Responders.
"I have been waiting to hear from Campbell Newman for a long time – goodness knows how many times I've communicated with him on a range of issues, and those communications have been unanswered," Jones said.
I've communicated with people there.
"I felt John and I had communicated with each other," Cantor said.
I've been fair with the players and I've communicated with them.
When I feel like I can't trust my brain 100%, Ludwig really comes in handy. It makes me translate and proofread faster and my output more reliable.
Claudia Letizia
Head Translator and Proofreader @ organictranslations.eu