Here are some common shortcut keys:
* Microsoft Word: F7
* Google Docs: Ctrl + Shift + I (Windows) or Command + Shift + I (Mac)
* Most web browsers: F7 (usually only works within a text field)
Note: Some programs may use different shortcut keys or may not have a dedicated shortcut at all. You can usually find the spelling and grammar check option in the "Review" or "Edit" menu.