The phrase "affect preparations" is correct and usable in written English.
It can be used when discussing how certain factors or events influence or change the way preparations are made for an event or task.
Example: "The unexpected weather changes may affect preparations for the outdoor festival."
Alternatives: "influence arrangements" or "impact planning".
The circus would still open on Wednesday, executives said, though a memorial service could affect preparations.
He dismissed concerns that the latest potential distraction would affect preparations for the Bears.
Pressure continues to mount for China to negotiate with the Dalai Lama and find a solution to a problem that has already begun to affect preparations for the Olympics.
India captain MS Dhoni reiterated Strauss' view that the trouble would not affect preparations.
Both Faz and Renard have refused to respond to government's stance but fans are worried the situation might affect preparations for the tournament.
On a visit to Moscow, Infantino also said he had received assurances from the Russian government that the economic crisis engulfing the country would not affect preparations for the 2018 tournament.
Critics also say a longer summer break can increase learning loss, especially for poor children, and negatively affect preparation for standardized tests.
"He keeps saying to me that he doesn't want this to affect preparation for the games, and that's the type of person he is.
Asked about how it would affect preparation to face St Johnstone, Locke said: "Obviously it's not been ideal, but we are all professionals and we have got to get ourselves focused for tomorrow.
Although surgical procedures in the oral cavity, tongue, pharynx can affect preparation, control and transport of the bolus, functional disorders following laryngeal surgery are most common and severe.
Following the sampling of lots (or sub-lots), precautions should be taken in order to avoid any changes of the incremental samples that can affect preparation of aggregate or laboratory samples, test portions, or the OTA test procedure itself.
