thmost serious aspect of all this is that the situation be exacerbated if the programme of intervention drawn up by monetary fund imp the european central bank x and you 
The most serious aspect of all this is that the situation will be exacerbated if the aggressive programme of intervention drawn up by the International Monetary Fund (IMF), the European Central Bank (ECB) and European Commission is implemented.
The most serious aspect of all this is that the situation be exacerbated if the programme of intervention drawn up by Monetary Fund (IMF), the European Central Bank (ECB) and European Commission implemented.