Where is the negative sign of the iphone 6s keyboard?

Under the nine-grid keyboard pinyin, what is the first grid? ! , click once to enter,

2

If you want to choose other punctuation marks, click once and you can choose from them.

three

Click the up arrow on the right to see all punctuation marks.

four

Long press,? ! , can be in,. ? ! Choose from four punctuation marks.

five

English Jiugong grid is also in the first grid. Choose punctuation marks.

six

After changing it into numbers. Switch the punctuation below.

English, numbers and pinyin punctuation are all used in this way.