1. Be Verbs Am Is was Are were Used in the present contentious tense. There Meaning as main verbs is (state of being) Main verbs after them should be in the progressive form (+ing) Active Past participle (P.P) Passive Main verbs after them should be in the progressive form (+ing) Active Past participle (P.P) Passive Present Past Only with (I)

2. Do Verbs Do Does Did Used in the simple tense. There Meaning as main verbs is (perform) Main verbs after them should be in the: Base form Main verbs after them should be in the: Base form Present Past For singular or Plural Past For singular or Plural

3. Have Verbs Have Has Had Used in the Perfect tense. There Meaning as main verbs is (eat, face, own) Main verbs after them should be in the: P.P form Main verbs after them should be in the: P.P form Present Past For singular or Plural Past For singular or Plural

4. Model Verbs Can could Shall should Will would May might must Used for (ask, offer, predict, ask for permission etc…) They don’t have meanings as main verbs. Main verbs after them should be in the: Base form Main verbs after them should be in the: Base form Present (singular or plural) Past (singular or Plural) Past (singular or Plural)