Here is a list of some common commands in PowerPoint:

• File Tab:
• New (Ctrl+N)
• Open (Ctrl+O)
• Save (Ctrl+S)
• Save As (Ctrl+Shift+S)
• Print (Ctrl+P)
• Share
• Export
• Close
• Account
• Options
• Home Tab:
• Cut (Ctrl+X)
• Copy (Ctrl+C)
• Paste (Ctrl+V)
• Format Painter
• New Slide
• Layout
• Reset
• Section
• Font formatting (size, font type, bold, italics, underline, color)
• Paragraph formatting (alignment, line spacing, bullets, numbering)
• Drawing tools (shapes, arrange, quick styles, shape fill, shape outline, shape effects)
• Editing (find, replace, select)
• Insert Tab:
• Tables
• Images
• Illustrations (shapes, icons, 3D Models, SmartArt, Charts)
• Add-ins
• Links
• Comments
• Text Box
• Header & Footer
• WordArt
• Symbols
• Media (audio, video)
• Draw Tab:
• Drawing tools (pens, eraser, ink to shape, ink to math)
• Design Tab:
• Themes
• Variants
• Customize (slide size, format background)
• Transitions Tab:
• Transitions to This Slide
• Timing (sound, duration, apply to all)
• Animations Tab:
• Animation
• Timing (start, duration, delay)
• Animation Pane
• Slide Show Tab:
• Start Slide Show (From Beginning, From Current Slide)
• Set Up (Set Up Slide Show, Hide Slide, Rehearse Timings, Record Slide Show)
• Monitors
• Review Tab:
• Proofing (spelling, thesaurus)
• Accessibility
• Comments
• Compare
• View Tab:
• Presentation Views (Normal, Outline View, Slide Sorter, Notes Page, Reading View)
• Master Views (Slide Master, Handout Master, Notes Master)
• Show (Ruler, Gridlines, Guides, Notes)
• Zoom
• Color/Grayscale
• Window (New Window, Arrange All, Cascade, Move Split, Switch Windows)
• Macros
• Help Tab:
• Help
• Contact Support
• Feedback
• Show Training

This is not an exhaustive list, but it covers many of the most frequently used commands.