Answer:
1 I talked to him on Monday. --> CAN'T CHANGE
2 I hated school when I was a teenager. --> I used to hate school when I was a teenager.
3 My parents didn't eat out very often. --> My parents didn't use to eat out very often.
4 We visited our grandmother every weekend. --> We used to visit our grandmother every weekend.
5 I went to the cinema with Mark yesterday. --> CAN'T CHANGE
6 Did you watch a lot of TV when you were a child? --> Did you use to watch a lot of TV when you were a child?
Explanation:
First, let's understand why we can't change numbers 1 and 5. "Used to" can be employed to refer to habitual actions in the past, that is, actions that happened frequently. In numbers 1 and 5, we are talking about a single action that happened at a specific time in the past, not about actions that happened often. Therefore, "used to" is not applicable to them.
All the other sentences are speaking of actions that happened often during a period of time in the past. If the sentence is affirmative, all we need to do is add "used to" before the main verb in its base form. If the sentence is negative, we use "didn't use to" before the main verb. Interrogative sentences place the auxiliary "did" before the subject, followed by "use to" and the main verb. Note that, in the negative and interrogative forms, it's "use", not "used".
Cool.........................
In many cases, you can't nail down the spelling of a word without knowing
what it means.
You didn't tell us what your word means, so there are different possibilities.
Here are a few:
-- In old German, a wagon driver was a wagner (VOG-nair) or <u>weiner</u> (VEIN-air).
As the Yiddish language (spoken among German Jews) developed from old high
German, some of them used the same word 'weiner' to mean 'one who makes or
sells wine'. The word came to the New World as a family name, spelled "Viner",
(as in my first high school crush).
-- The ancient city of Vienna, now the capital of modern Austria, is called "Wien"
(VEEN) in the languages around there. A person who was born or raised there
is called a <u>Wiener</u> (VEEN-air). Also, a small sausage that became popular there
was also called a Wiener. That's where we got the slang term 'weener' for a hot
dog or anything that resembles one.
-- A little kid who whimpers and whines all the time is called a <u>whiner.</u>
So the spelling really often depends on what your word means. That's one
reason why, in a spelling bee, they always give you a sentence along with
the word.