for iOS 9.1 software

around the keyboard. Without lifting your finger, press a little deeper to
select a word. Press twice to select a sentence. Press three times to select
a paragraph. After pressing, you can drag to select more text.
Undo the last edit. Shake iPhone, then tap Undo.
Save keystrokes
A shortcut lets you enter a word or phrase by typing just a few
characters. For example, type “omw” to enter “On my way!” That one’s
already set up for you, but you can also add your own.
Create a shortcut. Go to Settings > General > Keyboard, then tap Text
Replacement.