PRESENT PERFECT
PRESENT PERFECT AND PAST SIMPLE
- https://www.perfect-english-grammar.com/past-simple-present-perfect-4.html
- https://www.englishpage.com/verbpage/verbs5.htm
- https://www.esl-lounge.com/student/grammar/2g11-past-simple-present-perfect-gap-fill.php
- https://www.oxfordlearnersdictionaries.com/grammar/online-grammar/practice/present-perfect-simple-and-past-simple_10
CONDITIONALS
- https://www.perfect-english-grammar.com/first-conditional-exercise-1.html
- https://www.ego4u.com/en/cram-up/tests/conditional-sentences-1
- https://www.myenglishpages.com/english/grammar-exercise-conditional-type-1.php
- https://first-english.org/english_learning/if_clauses_conditional/03_if_clauses_type_1_online_exercises.htm
CONDITIONALS type 2
- https://www.englisch-hilfen.de/en/exercises/if_clauses/type_2_statements.htm
- https://www.ego4u.com/en/cram-up/grammar/conditional-sentences/type-2/exercises?02
- https://www.ego4u.com/en/cram-up/grammar/conditional-sentences/type-2/exercises
- https://first-english.org/english_learning/if_clauses_conditional/20_if_clauses_type_2_exercises.htm
CONDITIONALS – MIXED
- https://www.englisch-hilfen.de/en/exercises/if_clauses/mix.htm
- https://www.english-4u.de/en/grammar-exercises/conditional-sentences.htm
- https://www.engblocks.com/grammar/exercises/conditionals/conditional-sentences-type-1-and-type-2/
- https://first-english.org/english_learning/if_clauses_conditional/60_if_clauses_test_type_1_type_2.htm
FUTURE TENSE
- https://www.english-4u.de/en/tenses-exercises/future.htm
- https://www.ego4u.com/en/cram-up/grammar/future-mix/exercises
- https://english.lingolia.com/en/grammar/tense-comparison/future-tenses/exercises
- https://www.tolearnenglish.com/exercises/exercise-english-2/exercise-english-6874.php
- https://www.perfect-english-grammar.com/future-tenses-form-mixed-exercise-1.html
- https://www.englishgrammar.org/future-tenses-exercise/
- https://www.learnenglishfeelgood.com/mixed-future-tenses2.html