The past tense for eat is ate.
the past ten of think is
The word 'ten' is a noun, it doesn't have a past tense.
It is nothing. But a quarter past ten is a quarter hour after ten: that is 10:15 in the morning or evening.
Quarter to 10.
40 minutes
Twenty minutes.
a quarter past ten is 'dix heures et quart' in French.
The past tense for eat is ate.
Half past ten is 30 minutes after 10 o'clock. (10:30)
Ten past ten on a clock face has the hands balanced symmetrically on either side of the 12. Other times would also do this: quarter-past nine, for example, or twenty past eight. But ten ten looks best for display.
A time
Thought.