Do not use period for a point of time. Period implies extended time.

Nothing like

“James is nothing like so successful as his brother” illustrates a colloquialism that should be avoided. Use not nearly so, etc.

Notorious, Noted

“He was elected to Congress, then Governor, and we now think of sending him to the United States Senate. He is becoming quite notorious.” The word notorious implies some bad or doubtful quality or characteristic, and must not be used in the sense of noted or famous.

Nowhere near so

“He trapped nowhere near so many rabbits as his cousin.” This vulgarism should be avoided. Use not nearly.

Plead

The past tense of read is read, but the past tense of plead is pleaded, not plead. “The prisoner pleaded for mercy.”

Plenty, Plentiful