Set off - Start
He set off for Delhi early this morning.

Set up - Establish
He has enough capital to set up in business.

Set up for - Pretend to be
He hired a bungalow and set up for a millionaire.

Set down - Charge
You can set down his loss to me.

Set apart - Reserve
These seats are set apart for ladies.

Set forth - Explain
In his speech, the teacher set forth his views on prohibition.

Set upon - Attack
The robbers set upon the defenceless traveler.

Set in - Begin
Winter in England sets in about December.

Set out - Start
They set out on a long journey.

Set about - Begin
He will soon set about his work.

Set aside - disregard
She set aside all my objections.