Linkers

Use linkers wisely to make your writings more coherent. Try some exercises:

Find purpose, reason and result clauses here.

Expressing reason here.

Expressing purpose here.

Expressing contrast here.

If you want to learn what a subordinating conjunction is, click here. This will help you have a better control of sentence formation.There's a useful exercise, too.

And if that's not enough, you'll find plenty of exercises here.

Future probability

You're bound to learn how to express future probability if you check out these links:

Try an exercise here and another one here.

There's an explanation and and exercise here (by the British Council)

Express probability using modal verbs here.

You'll find a list of expressions other than modal verbs here.

Learr how to use likely/unlikely  here (by the Cambridge Dictionary)

Agreeing and disagreeing

Learn and practise how to give opinions in English.

Click here for a video with info.

Click here to learn how to agree.

Click here to learn how to disagree.

And click here to learn how to make a point.

Writing a formal email

Look at these links that will help you handle the language you need to write a (semi)formal email.

This one is a very thorough but straightforward explanation of formal emails by the British Council. There are some tasks you can do at the end of each section.

Here's some advice about different language for formal/informal emails.

And here there's some more advice and an exercise at the end.

And of course, whenever you write anything in any language, bear in mind this and this.

Obligation, permission and prohibition

Is that clear?

You'll find some exercises to practise these modal verbs here, here and another one here.

To practice should, ought to and had better: explanation and exercises here. Click here and  here for exercises.

Need: read about how to use it as a modal verb here. Exercises here and here.

With these exercises you can also revise other modal verbs. Click here, here