Use long forms: does not \will not doesn't\ won't

Active -Eg.: If you do the task, I will chek. or

Passive -Eg.: If the task is done, it will be checked.
1) Not only the cleaning process (to involve)
labor costs, it may require special equipment, particularly if chemical cleaning (to involve)
2) Fresh deposits (to form)
only if the deposit bond resistance (to be)
greater than the prevailing shear forces at the solid–fluid interface.
3) Dissolution (to occur)ответ
only if there (to be)ответ
a change in the properties of the deposit.
4) If the temperature of the heat exchanger surface on the water side (to be)ответ
at or below 0°C, then a layer of ice (to form)ответ
on the surface.
5) If the solid (to be) ответ
on the shell side, it (to be)ответ
impossible to remove the tube bundle.
6) If the total thermal resistance (to increase) ответ
the amount of heat transferred through the surfaces (to decrease) ответ
.
7) If the layer of insulating material (to have) ответ
a high thermal resistance, higher than any other part of the heat exchanger, the total thermal resistance (to increase) ответ

I write a letter every day.Present Simple

I am writing a letter now. Present Continuous

I have written a letter. Present Perfect

I have been writing a letter for two hours. Present Perfect Continuous

I wrote a letter yesterday. Past Simple

I was writing a letter yesterday at 5. Past Continuous

I had written a letter by the time you came. Past Perfect

I had been writing a letter for two hours by 5 o’clock. Past Perfect Continuous

I will write a letter tomorrow . Future Simple

I will be writing a letter tomorrow at 5. Future Continuous

I will have written a letter by the time you come. Future Perfect

I will have been writing a letter for two hours by 5 o’clock. Future Perfect Continuous

1. A bit confusing question. Well. The Dzungars were much better armed. They had a huge army and firearms, while the Kazakhs were supplied with sabers, spears and bows. Also, at the head of the Dzungar Khanate there is a powerful leader - Tsewang-Rabdan. They themselves produced gunpowder and other weapons. The guns were purchased from the Russian Empire. But then they themselves set up their production, taking prisoner Johann Gustav Renat, a Swede, who headed this business.
Numerical superiority + many times superior weapons + great potential = a very bad position for the use of the Dzungar Khanate, which turned out to be the Kazakh Khanate.
2. At the heart of the conflicts between Kazakhs and Dzungars was the rivalry for the ownership of pasture lands.
3. "The Years of the Great Calamity" - 1723-1727. In 1723, the Chinese emperor Kangxi, who had fought with the Dzungars for a long time, dies. After that, the road to the territory of the Kazakh Khanate is open. And in 1723, a massive Dzungar invasion began, led by Tsewan-Rabdan. The first to take the blow are the Kazakhs of Semirechye and Priirtyshie. In 1724-25 Turkestan, Tashkent and Sairam were captured. Also, all hostilities were aggravated by the fact that the jute began. And people died not only from the raids of the Dzungars, but also stupidly from hunger.
4. The reason is simple: lack of political unity. The Kazakh Khanate was very vulnerable, since the zhuz system was in effect. And if the Junior Zhuz is at war with someone, then the Senior Zhuz will not help in any way. The fact that the Kazakhs did not have a regular army also played a role, and the resistance to the Dzungars was provided mainly by the people's militias. Systematically and financially prepared and needless to say.
5. The consequences were quite serious:
1. Violation of travel routes
2. Deprivation of fertile pastures
3. Falling cattle
4. Trading interrupted
5. The south of the state fell into decay
6. Many large cities destroyed
7. Many were taken prisoner and then sold into slavery
8. The total population has decreased (according to Shakarim Kudaiberdyuly, about two-thirds of the steppe population died). Well, the consequence of all this was an easy, almost voluntary colonization by the Russian Empire.
6. Look for information about Bogenbai-batyr. It's somehow pointless to write a biography and a feat here, since you can simply open other resources and save you time x)