Thought.
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.
Because the BBC don't think that it's a children's programme.
Quarter to 10.
The past tense for eat is ate.
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)
You can say "It's half past ten" or "It's ten thirty." Both phrases convey the same time, indicating that it is thirty minutes after ten o'clock.