What is the negative form of if?

We can also create negative first conditionals by using the negative of the present simple in the if clause, and the negative of will in the future simple clause. For example: “If I do not go, I will not see him.” “If I don’t see him, I won’t have to say goodbye.”

What form of verb we use with if?

In both sentences above, the “if” clause contains a form of the past tense of the verb. There is one exception to this rule, however. If the verb in the if clause is “to be,” use “were,” even if the subject of the clause is a third person singular subject (i.e., he, she, it).

Where do we use if and unless?

Using if and unless

1. If you do not finish the job in time, you will be sacked.
2. Unless you finish the job in time, you will be sacked.
3. You must not violate the rules.
4. If you violate the rules, you will be in trouble.
5. Unless you violate the rules, you will not be in trouble.
6. He will have to work hard.

When to use if or should?

Conditional should means if and is used for hypothetical situations. Should you need anything else, please call this number. (If you need anything else, please call this number.)

What tense should I use after if?

the if-clause uses the past perfect tense, and the main clause uses the future perfect conditional tense: would have + past participle of the verb.

What is the use of if?

In speaking, we often use if to introduce a polite request. If is usually followed by modal verbs will, would, can or could when it is used to be polite: If you’ll just tell Julie that her next client is here. (Can you tell Julie that …)

How do you use if not for?

Definition of if not for : in the absence of (something or someone) : without If not for modern medicine, fewer babies would survive. If not for him, I wouldn’t be where I am today.

Should I use if in a sentence?

By using should in the if-clause we are suggesting that something is unlikely or not particularly probable. If you should run into Mathews, tell him that he owes me $100. (= Your chances of meeting Mathews are rather slim, but if you MEET him, tell him that he owes me some money.) If she should come, ask her to wait.

Should we VS if we?

‘Should’ is correct, and so is ‘if’.