Today I realized that it is possible I am incapable of experiencing love.
Your question is itself a sentence which uses the word "could".
I was going to legitimately answer this question till I realized how ridiculous it was.
Give me a sentence using the word Kerchief. That is a sentence that uses the word. Seems as though you could figure this out.
Tom veered his car sideways when he realized he was on the wrong lane.Luke Verred in to the room.
Although she never realized it, their first meeting was not by circumstance, but by design on his part.
A sentence using the word Water tight could be "Is this seal watertight?" .
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An example of a sentence with are could be:"We are very happy that you could come to our party."
A Sentence using the word Gate Is: i went to open the gate so i could take my dogs for a walk .
A sentence using the word admit could be this, "The man on trial did not want to admit he was wrong."
Such a sentence could take some time to come up with.
Your spelling could use improvement.