The easy way to ielts writing academic Module

Verb (base
form)
Noun
Adjective
Adverb
To inform
Information
Informative
Informed
Informational
Informatively
To succeed
Success
Successful Successfully
To urge
Urgency
Urgent
Urgently
To apply
Application
Applicant
Applicable
Applied
Applicably
To necessitate
Necessity
Necessary
Necessarily
4) Grammatical range and accuracy
It is vital to use grammar accurately; this includes correct use of 
tenses
, 
active
and passive voices
, 
subject-verb agreement
, 
conditionals
, 
modals
,
prepositions
, 
articles,
and various 
sentence structures 
in both writing tasks. A
thorough review of all these grammar points is strongly recommended to
achieve a high band score for grammar. There is a quick look at each of these
aspects of grammar in the following pages:
Tenses
Depending on the type of writing, various tenses, such as present simple, past
simple, present perfect, present perfect continuous, or future tenses, might be
required. In most cases, a combination of a few tenses is dominant in a single
piece of writing, and in this case, a smooth transition among them is
essential.
For example
In summer, sales usually soar, but the state had announced a sudden
drop in sales a few months before it happened; however, based on
current trends, they will increase gradually by the end of the year.

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(There is a natural and smooth transition among present simple, past perfect,
past simple, and future tense in the above example.)