The similarities are between lie and lay. Copying from one site,
The "lie versus lay" debate is particularly confusing, for 3 main reasons:
1.) Their spellings are similar, but not the same.
2.) Their meanings are similar, but not the same.
3.) The past tense of lie is the present tense of lay...
The past tense of lie is lay.
The tiger lay on the ground.
The past tense of lay is laid.
I laid my hat on the shelf.
Another interesting thing about lie is there's a phrase called "lying down" which means "to passively accept something"
Also:
Lie means to be in a horizontal position or be situated and it DOES NOT take a direct object. example: I just want to lie down and go to sleep.
Lie also means to tell a falsehood, and it does not take a direct object. example:Whenever someone asks me my age: I lie.
See the tenses of each of these words.
Lay (lay, laid, laid): I lay spoons on the table. I laid spoons on the table. I have laid spoons on the table.
Lie (lie, lay, lain): I need to lie down. I was tired so I lay down. I am comfortable now that I have laid down.
Lie (lie, lied, lied): I lie about my age. When asked my age: I lied. I have lied about my age.
