Examples:

• The number of members has varied from time to time.
• But from time to time, she can be a little... flat.
• My line of work requires it from time to time.
• That you needed help with boy from time to time.
• Perhaps we could meet from time to time, for coffee?
• What nobody could have expected is... from time to time,
• Well, my team has needs from time to time.
• Fate needs a little push from time to time.