House Speaker Jim Wright (D-Tex.) contended yesterday that the Reagan administration broke the law in seven instances in the Iran-contra affair and said it is "absolutely beyond belief" that President Reagan could be unaware of that.

Reagan said Friday that "I haven't heard a single word that indicated in any of the {congressional hearing} testimony that laws were broken."

His spokesman, Marlin Fitzwater, amended that comment Monday to say it applied only to the limited snips of hearings the president had watched on television.

Wright said Reagan's original statement was "very disturbing," because "several laws clearly were flouted by persons in the Reagan administration. It is absolutely beyond belief that the president would be unaware of this fact at this late date."

After completing public hearings on the affair a day earlier, the congressional Iran-contra investigating panels spent yesterday behind closed doors taking testimony from Duane Clarridge, the Central Intelligence Agency's chief of counterterrorism.

Clarridge was in frequent contact with Marine Lt. Col. Oliver L. North during the time North was running the contra resupply network from his National Security Council office.

Clarridge was to be followed to the witness table by Alan Fiers, director of the CIA's Central American task force, and Clair George, the agency's chief of covert operations.

In his statement, Wright listed the statutes he said had been violated in the affair that sent weapons to Iran and aid to Nicaragua's contras:The National Security Act, which requires that the administration keep congressional oversight committees "fully and currently informed" of intelligence activities. The Arms Export Control Act, which requires a presidential report to Congress if major defense equipment is transferred and which prohibits export of arms to countries deemed to be supporting international terrorism, unless the president specifically submits a waiver to Congress. The law appropriating money for the Pentagon, which prohibits the shifting of intelligence money for other uses without notification to Congress. The Boland Amendment, which cut off military aid to the contras by any government agency involved in intelligence activities during much of the time clandestine aid was flowing to the rebels.

"That law was flouted," Wright said.