Stormont could be facing major problems if the Alliance Party does not take up the offer of filling the justice ministry, Deputy First Minister Martin McGuinness has warned.
The Alliance Party and the SDLP have yet to say if they will join the executive.
Mr McGuinness said he hoped ministries would be allocated and a government formed on Wednesday next week.
"I think people need to get real, it's make your mind up time over the course of the next seven days," said Mr McGuinness.
He added: "My focus at the minute is on whether the Alliance Party decide to take the position they have been offered, if they take it then that's a good result, I think, for everybody.
He added: "I hope the SDLP will decide to come into the administration, we are involved in discussions with them, and there will be a further engagement tomorrow and after that they will have to decide."