"Whenever" and "Seen"

[Randi]

Lut, if you look up the words "then" and "than" in your dictionary, you will see it's two different words. "Then" is when you say: Bernard planted some flowers in the garden, then he put the tools away and went inside for a cup of coffee.

"Than" is used when you say: The red flowers are prettier than the yellow.

Here are some more examples from another thread:

Then = at that time. As in "I was still in school then." Or "Come at noon; I'll be ready then."
Next in time, space, or order; immediately afterward. As in "I watched the late movie and then went to bed."
In addition; moreover; besides. As in "It costs $20, and then there's the sales tax to pay."
Used after but to qualify or balance a preceding statement. As in "The star was nervous, but then who isn't on the first night of a new play."
In that case; accordingly. As in "If traffic is heavy, then allow extra time."
As a consequence; therefore. As in "The case, then, is closed."

Than: Used after a comparative adjective or adverb to introduce the second element or clause of an unequal comparison. As in "She is a better athlete than I."
Used to introduce the second element after certain words indicating difference. As in "He draws quite differently than she does."

This is another good example:

One pet with many toys: "the animal's toys"
More than one pet with many toys: "the animals' toys"


And a good link:

http://www.dreaded-apostrophe.com/