Using the Conditional TYPE 1
The first conditional is used to talk about the possibility of something happening in the future. We use will/may/can to make the first conditional
We use the first conditional when we talk about real and possible situations.
If + subject + present tense (or present progressive) ----, subject + will/may/can + base verb ----.
If + simple present simple future
usage for: A possible condition and its probable result
If you don't hurry you will miss the train.
If it rains today you will get wet.
If it rains tomorrow, I will take my umbrella.
If you help me, we can finish earlier.
If the boys give the monkey a coin, it may dance for them.
Notice that each sentence above uses the present tense on the if side. But we could also use the present progressive if something is happening right now.
If he isn't working right now, he may want to come over for dinner.
We can also change the order of the sentence and put the if side on the second half. The only difference is that there is no comma.
I will take my umbrella if it rains tomorrow.
We can finish earlier if you help me.
The monkey may dance for the boys if they give it a coin.
He may want to come over for dinner if he isn't working right now.