The work he has began vs The work he has begun

Some examples from the web:

• The work began several years ago and is essential if we are to guarantee transparency.
• The work began in the 1980s, and the last twenty years have seen investment totalling more than EUR 50 million.
• Your Commission began the work of internal reform.
• The work which began in 1997 covers approximately 25 hectares, and this area has been earmarked for housing.
• I locked the door when the work day began.
• I'm betting the military never stopped the work it began 50 years ago.
• First of all, I would like to stress the fact that the Commission has cooperated honestly and constructively with the work of the committee as it promised Parliament from the moment that work began.
• Now, my work began at the beginning.
• - work began on the irrigation of 468 hectares,
• Work began on the development on 1 January 2000.
• the incapacity for work began on...
• The following Friday right about after lunchtime the pace of work began to slow.
• My group will lend you all the support it can in your efforts to continue the work Sweden began in the name of sustainable development.
• Despite this, the project has never been completed; the municipality took the decision before any work began on building the ground.
• My day's work began just before nightfall.
• Meanwhile at television centre work began again on a sketch about ypres.
• Despite this, the project has never been completed; the municipality took the decision before any work began on building the ground.
• Work began in 2007 on the 2008 Evaluation report on the operation and effectiveness of the Motor Vehicle Block Exemption Regulation 1400/2002.
• For example, work began on preparing a burial pit in Ash Moor, Petrockstowe, where the groundwater level was only around one meter below the surface.
• Work began on 10 February 2005, the day after the contract was signed.

Some examples from the web:

• The Commission has already sent out all the details regarding the work it has begun, so I will not repeat them here.
• I feel that the work begun by the Commission to simplify and clarify Community legislation is essential.
• Since January 1996, work has begun in order to draw up its internal regulations, in particular in the light of the work of the European data commissioners.
• The rapporteur is pleased that the Capital Requirements Directives 2006/48/EC and 2006/49/EC are being amended, but believes that the work has begun too late.
• · Already, work has begun on establishing an EU foreign ministry and diplomatic service.
• Italian diplomacy has begun to work towards restoring the balance.
• It will also seek to complete the work begun on modernising the legal arrangements for coordinating the social security of migrant workers.
• We will carefully study the planned White Papers and will participate constructively in the work begun or promised.
• In that way, the Dayton Agreement has concluded the work begun by the nationalist parties during the first post-Communist election in 1990.
• As Members of Parliament, we must pay particular attention to the fact that the work begun to establish fundamental rights is more important than ever.
• The work that has begun must therefore be continued accurately, determinedly and dispassionately, and with no ambiguity as to the expected outcome, lest undue expectations again be raised for the victims.
• Work has begun inter alia on devising coherent approaches and measures to deal with potentially destabilizing capital flows as well as the management of global liquidity.
• Work has begun at the Icod de los Vinos-El Tanque subsection where 70 % of the land has been compulsorily purchased.
• In Kars, Turkey, work has begun on the demolition of a large monument which was intended to promote reconciliation with Armenia.
• Furthermore, work has begun on building an 18-hole golf course in the last few weeks.
• Work has begun on methodologies for assessing banks» credit risk exposures to various industrial sectors and for conducting stress-test analyses.
• Work has begun on preparing a ministerial meeting to tackle all issues from illegal migration to trafficking in human beings and people smuggling.
• During the last few months detailed work has begun on the Commission's Agenda 2000 proposals.
• The Commission has begun work on a feasibility study for Serbia and Montenegro.
• Whilst you were away, Prior Godwyn has begun work on his palace.