pcie x1 slots

I want to buy a PCIe x4 Wi-Fi/Bluetooth card, but the main board only has x1 slots remaining. Can I insert a PCIe x4 card into a PCIe x1 slot?

PCIe x1 slots have only one PCIe lane. Despite having only one PCIe lane, PCIe x1 slots are useful for various lower-power PCIe peripheral cards. PCIe x1 cards can fit into all PCIe expansion slots, including x4, x8, and x16 PCIe slots. There are various peripheral cards you can use with PCIe x1 expansion slots.

*1 PCIE 3.0 X16_2 runs x1 mode when any of the PCIe 3.0 x1 slots is occupied. *2 M2_2 shares bandwidth with SATA6G_56. When M.2_2 is populated, SATA6G_56 will ...