ENGR 220 Lecture Notes - Lecture 6: Infinitive
Document Summary
The simple past tense in regular verbs is formed by adding (ed) to the infinitive : Verbs ending in (e) add (d) only : The same form is used for all persons : I worked you worked he worked etc . The negative of regular verbs is formed with did not ( didn"t ) and the infinitive : I did not / didn"t work . etc . The interrogative of regular and irregular verbs is formed with did + subject + infinitive : These very considerably in their simple past form : Infinitive : to eat , to leave , to see , to speak . Simple past : ate , left , saw , spoke . The simple past tense is also used for a past habit : The simple past is used in conditional sentences , type . 2. :
