so as to do sth
fixed phr..fixed phr.. you use this to explain the reason or purpose for an action.
fixed phr.. a complex subordinator used to introduce a clause of purpose; it is more formal than 'to' or 'in order to'.
He left early so as to avoid the traffic.
The company updated its privacy policy so as to comply with the new government regulations.
The diplomat carefully phrased his response so as to maintain neutrality without alienating his domestic supporters.
always followed by the base form of a verb; the negative form is 'so as not to'.
contrast with 'so that' which requires a subject and a modal verb; 'so as to' is a more sophisticated way for students to express purpose in formal writing.
He studied hard so as to he could pass.He studied hard so as to pass.this phrase must be followed by an infinitive verb, not a full clause with a subject.