. Conjugation
Affirmative
I am working
You are working
He is working
She is working
It is working
We are working
You are working
They are working
Negative
I am not working
You are not working
He is not working
She is not working
It is not working
We are not working
You are not working
They are not working
Interrogative
Am I working?
Are you working?
Is he working?
Is she working?
Is it working?
Are we working?
Are you working?
Are they working?
Contracted forms: am = 'm is = 's are = 're
am not = 'm not is not = isn't are not = aren't
2. Spelling of the ing-form (present participle) General rule: infinitive without 'to' + ING
to work --> working
to play --> playing
Verbs ending in a silent E: the E is dropped +ING
to live --> living
to come --> coming
Verbs ending in IE: the IE changes into Y +ING
to die --> dying
to lie --> lying
Verbs with the stress on the last syllable, ending in a consonant,
preceded by a short vowel: the end consonant is doubled + ING
to stop --> stopping
to begin --> beginning
Verbs ending in L: the L is doubled +ING
to travel --> travelling
to quarrel --> quarrelling
Verbs ending in IC: the C is followed by K +ING
to picnic --> picnicking
to panic --> panickin

___________________________________________