From Synaptic Package Manager, search for “ibus”, install ibus, ibus-gtk.

For input methods for examples, Chinese Pinying and Japanese Anthy, you may install ibus-pinyin, ibus-anthy and etc.

Note: Normally IBus startup configuration will be done automatically after installation. But if not, do it manually.

Create a file /etc/xdg/autostart/ibus-daemon.desktop as follows;

———————————————————————
[Desktop Entry]
Name=iBus Daemon
Exec=ibus-daemon -d
Terminal=false
Type=Application
OnlyShowIn=GNOME;XFCE;LXDE;
———————————————————————

This will autostart ibus-daemon after reboot.