He almost fell from the balcony. I'm sure that if he had fallen, he (break) his leg or something. If I leave now, I (be) home in two hours.

If you (like), I'll lend you my car for two days. If we increased the price, we (run) the risk of pricing ourselves out of the market.

If you (ask) your boss, I'm sure he would have considered your proposal.

The radio is broken. When you turn it on, it (make) a strange noise. I'd set them the task if they (be) more reliable. However, I don't think they're capable of doing it.

If I had known how long the journey was, I (take) something else to read with me.

If you (not/manage) to finish the catalogue on time, we'll have to postpone the printing until next month.

The accident (might/not/be) so bad if you'd been driving more slowly.

Past Simple маркеры:
yesterday
Last week, day etc.
2,3 hours,years,weeks ago
in 1990,2000...
the day before yesterday и т.д
положительное предложение-S(существительное)+V(глагол)+ed(окончание правильных глаголов)/2-ая форма неправильных глаголов Example- I|You|She|He|It|They|We went to cinema yesterday.
отрицательное предложение-
S+didnt+V Example I|You|She|He|It|They|We didnt go to cinema yesterday.
вопросительное предложение
Did+S+V Example Did I|You|She|He|It|They|We go to cinema yesterday.

Present Simple маркеры:
always
often
sometimes
every day,month
on Mondays,Tuesdaysetc.
положительное предложение
S+V I|They|We|You go to cinema always
S+Vs She|He|It goes to cinema always
отрицательное предложение
S+Dont+V I|They|We|You dont go to cinema always
S+Doesnt+V She|He|It doesnt go to cinema always
вопросительное предложение
Do+S+V  Do I|They|We|You go to cinema always 
Does+S+V  Does She|He|It go to cinema always

Future Simple маркеры:
tomorrow
the day after tomorrow
tonight
next week,day
soon etc.
положительное предложение
S+will+V I|You|She|He|It|They|We will go to the cinema tomorrow
отрицательное предложение
S+wont+V I|You|She|He|It|They|We wont go to cinema tomorrow
вопросительное предложение
Will+S+V? Will I|You|She|He|It|They|We go to the cinema tomorrow

Past Perfect:
by 
before
by the time 
положительное предложение
S+had+V+ed/3-ая форма (неправильных глаголов)+маркер+Past Simple
I|You|She|He|It|They|We had done his homework before I|You|She|He|It|They|We went to cinema
отрицательное предложение 
S+Had not+V+ed/3-ая форма(неправильных глаголов)+маркер+Past Simple
I|You|She|He|It|They|We had not done his homework before I|You|She|He|It|They|We went to cinema
вопросительное предложение
Had+S+S+V+ed/3-ая форма(неправильных глаголов)+маркер+Past Simple
Had I|You|She|He|It|They|We done his homework before I|You|She|He|It|They|We went to cinema

Present Perfect
just-используется когда действие только что завершено
already-используется когда действие только что завершено
yet-используется когда действие не законченно
for 1,2,3year,monthetc
since

положительное предложение
S+Have+V+ed\3-ая форма
I|You|they|We have gone cinema
She|He|It has gone cinema
отрицательное предложение 
I|You|they|We havent gone cinema
She|He|It hasnt gone cinema
вопросительное предложение
Have+S+V+ed\3-ая форма
Have I|You|they|We gone cinema
Has She|He|It  gone cinema
К сожалению, я полный ноль в  Past Progressive, Present Progressive.

I lived Peter Rabbit and his brothers. They lived with their mother. Mom released rabbits walk, but told them not to go into the garden McGregor. The brothers went to pick berries, but Peter went into the garden. There he came upon the man, and for a long time running. but then Peter got into the net and got stuck. The man was going to grab it, but the rabbit jumped out and hid in a watering can. Mister could not find him, but Peter sneezed, and a man found him. The rabbit jumped out and ran away