Present Continuous: Spelling Rules for Adding -ING to Verbs Ending in ie and e

Spelling Rules for the Formation of the Present Participle 1
Some verbs change their spelling when the ending ing is added to form the present participle.

a. Verbs ending in a silent e
When a verb ends in a silent e, the silent e is dropped before the ending ing is added. For example:

Infinitive	Present Participle
to close	closing
to dine	dining
to leave	leaving
to move	moving

However, when a verb ends in an e which is not silent, the final e is not dropped before the ending ing is added. For example:

Infinitive	Present Participle
to be	being
to see	seeing

b. Verbs ending in ie
When a verb ends in ie, the ie is changed to y before the ending ing is added. For example:

Infinitive	Present Participle
to die	dying
to lie	lying

When a verb ends in y, no change is made before the ending is added. For example:

Infinitive	Present Participle
to fly	flying
to play	playing

Using the Present Continuous tense, fill in the blanks with the correct forms of the verbs shown in brackets. For example:
      They _____________ the lemons. (to squeeze)
      They are squeezing the lemons.

      It ________ on the sidewalk. (to lie)
      It is lying on the sidewalk.

      I ___________ the groceries. (to carry)
      I am carrying the groceries.

Answers:
1. is writing 2. are worrying 3. is making 4. is dying 5. are hurrying 6. is daring 7. are lying 8. is solving 9. am leaving 10. are trying