er, prep.indicates specific (as opposed to non-specific) object noun phrase in certain constructions [similar to how 'the' is different from 'a']; used to precede the object of locational, directional, source, temporal, and causal phrases.

in; at; on; to; from; of; out of; because of; for; with; by means of; about.
er
a
a
a
e
el
er
a
ak
er
a
eracont.er a
racont.er a
Examples:
> Droteo said that he can come to your party tomorrow.
> The car hit the telephone pole.
> Can you help God stretch out the sky and make it as hard as polished metal?
> The tide went out in a few hours.
> I think Droteo's coming to the party.
Proverbs:
> Like the insects which stays at ashes of fire but doesn't burn.
You're near a situation which needs immediate attention but you don't lend a hand.
> You're like the stork which flies with its legs dangling.
You leave unfinished business behind and split.
> Like a person somewhere taking a bath, but I'm cold.
Applies to any embarrassing act, such as boasting or gossiping, on the part of a friend.
> Like the raid at Ulong, doing it in the evening
Pertains to a battle between the people of the once-inhabited islands of Ulong and Ngemelis in which the leader of the Ngemelis forces successfully defeated those of Ulong by attacking in the evening with the setting sun directly at his back, blinding the Ulong forces. Application is to a meeting or task, which might better have been started earlier, postponed until evening
> Like the man who made coconut syrup in Ngesebei, dipping from half-filled containers to keep one overflowing.
Pertains to a situation which may have occurred in Ngesebei, a small hamlet in Ngardmau (northern Palau): a coconutsyrup specialist always kept one coconutshell container full and in sight of guests, who, thus, would think that all of his containers were full. The idiom applies to any pointed display of opulence. It's a deceptive display of wealth.
More Examples:
> Excluding Ulang seems excessive.
> There might be a few drops of oil in the bottle.
> He or she is wearing a yellow shirt.
> I went out last night.
> Hello! Answer the phone!

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