be to blame
fixed phr..fixed phr.. to be the person or thing that caused something bad to happen.
fixed phr.. to be responsible for a fault or a negative outcome; functions as a predicative adjective phrase following the copula 'be'.
The driver was to blame for the accident.
Experts say that poor maintenance is to blame for the sudden power failure in the city.
While the CEO resigned, many analysts argue that the board of directors is equally to blame for the company's financial collapse.
usually used in the pattern 'be to blame for [something]' or 'be to blame for [doing something]'.
point out that this phrase uses an active infinitive ('to blame') with a passive meaning ('to be blamed'); it is more common in speech than the formal 'be responsible for'.
He is to blame of the mistake.He is to blame for the mistake.the preposition 'for' must be used to connect the blame to the specific cause or event.