Verb Tenses and Conditionals in English Grammar
Classified in Electronics
Written at on 
English with a size of 3.85 KB.
Present simple: verb normal and only add -es/-s in 3rd person singular. In negative, add don't or doesn't.
Present continuous: use am/are/is and the verb ending in -ing.
Past simple: put the verb with -ed at the end or the second column if irregular. In negative, use wasn't/weren't/didn't, the latter with the infinitive.
Past continuous: use was/were and the verb ending in -ing.
Will: use with verb in infinitive and if negative, use won't.
Be going to: conjugate be (am/are/is) and the verb in infinitive.
Present perfect: use have/has and the 3rd column to negate haven't/hasn't. Expressions: just/yet/already/never/ever/how long/this month/this week/today/for/since.
Used to: affirmative (subject+used to+infinitive)
negative (subject+didn't use to+infinitive)
interrogative (did+subject+use to+infinitive?)
short answer (yes, subject+did)(no, subject+didn't)
be used to: be accustomed to...
get used to: get accustomed to...
Past perfect: use had and the verb in 3rd column to negate hadn't.
Conditionals:
1st conditional: used for actions that would happen if the specified condition is met. Expressed with if+subject+present simple, subject+will+infinitive. Example: I will stay home if I don't finish my homework/if I don't finish my homework, I will stay home. Interrogative: Will+subject+predicate of the main clause+subordinate clause. Example: Will he come to the theatre if he feels better?
2nd conditional: used to talk about hypothetical actions referring to the present, meaning they are unlikely to happen. Expressed with if+subject+past simple, subject+would/could/might+infinitive. Example: if I saw a thief, I would hide in the wardrobe. Interrogative: Would+subject+predicate of the main clause+subordinate clause. Example: If it rained, I would take the umbrella.
3rd conditional: used to talk about completely impossible conditions. They refer to the past and can no longer occur. Expressed with if+subject+past perfect, subject+would/might/could+ past participle infinitive. Example: If it had rained, I would have taken the umbrella. Interrogative: would+subject+have+past participle+predicate of the main clause+subordinate clause. Example: Would you have accepted the job if you had won the lottery?
0 conditional: Used to state universal truths. Expressed with If+subject+present simple, subject+present simple. Example: If I heat water to 100ºC, it boils
Passives: Active: Teachers took Stephen on sketching trips.
Passive: Stephen was taken on sketching trips.
Present simple passive: Stephen is taken on a helicopter ride. Cameras are not used during the flight. Are his drawings done from memory?Past simple passive: Stephen was examined by a doctor. His talent wasn't discovered until he was five.Was this building drawn by Stephen?Future simple passive: Stephen's drawing will be shown in London. It won't be shown in New York.Will it be taken to other cities?
Have something done (I) I have had my hair cut. Subject+have something+done(verb in past)