• rhe lines,
• fhe lines,
• ghe lines,
• yhe lines,
• 6he lines,
• 5he lines,
• tge lines,
• tbe lines,
• tne lines,
• tje lines,
• tue lines,
• tye lines,
• thw lines,
• ths lines,
• thd lines,
• thr lines,
• th4 lines,
• th3 lines,
• the kines,
• the pines

The adjective form of "the lines" would be "lineal".

The plural form of "the lines" is "the lines".

The plural of the "the lines" can be the "the lines".

The singular form of the word "the lines" is "the line"

The singular of the "the lines" can be the "line".