"have multiple purposes" is a grammatically correct phrase and can be used in written English.
It is typically used to describe objects or actions that can serve more than one function or have more than one intended use. Example: "The Swiss Army Knife is a versatile tool that can have multiple purposes, such as cutting, sawing, and opening bottles."
But in this case, it is kind of different, in that you have multiple purposes sharing the same real estate.
"On stage, you learn that everything you build affects something else, and everything has to have multiple purposes," Mr. Grassi said in giving a tour of the premises, which takes more time than might be expected.
Khalilzad's emphasis on the issue when talking to Allawi's allies seemed to have multiple purposes: to make them aware of the need to deal with the charges, to foster the impression that the U.S. was neutral, and, possibly, to distance the U.S. if more evidence against Allawi emerged.
In reality, we all have multiple purposes and can find purpose and make meaning every day.
To some degree, this shift reflects the fact that laws regulating intellectual property often have multiple purposes, including trade and foreign relations interests, which sometimes point in more expansive directions than do those of the more limited IP Clause.
Focus group discussions and key informant responses confirmed that camels have multiple purposes among the pastoral communities, which included providing transport in the desert, so many communities refer to camels as 'lorries' (trucks).
Also chukka boots seem to be in style at the moment and have multiple purpose.
The movie had multiple purposes: to advance the conservative cause, to hurt Hillary Clinton's chances for victory, and to make money.
Perhaps the most that can be said in these circumstances is that Congress had multiple purposes in mind in providing an exemption for a sole surviving son.
Although this species has multiple purposes and may be a feedstock of biofuel in China, transcriptome information and molecular research on this species remain limited.
The Falcons' no-huddle has multiple purposes: sometimes with the conventional goal of accelerating the pace, other times to moderate it by running down the play clock while hindering situation substitution by the defense.
