Rules of the Present and Past Progressive

1.- If a verb finishes with the letter "e", this deletes for i latin letter plus "ing",for instance:

• to come / coming

• rude /ruding

2.- If a verb finishes with double vowel (ee), adds "ing",for instance:

• To see/Seeing

• to flee / fleeing

3.- If a verb finishes in "ie" this deletes and adds "yng" ,for instance:

• Die / Dyng
• Tie / Tyng

4.- If a verb finishes with different letter ,in some cases ,adds other letter according to its ending,for instance:

• Sit / Sitting
• Hit / Hitting

5.-If a verb finishes with the "L" letter ,adds other "L" ,plus "ing",for instance:

• Feel / Feelling
• Travel / Travelling