The causative verb 'make' is followed by the bare infinitive (without 'to'). Correct: 'The teacher made the student write'.

'Both' is not used in negative sentences. Instead, 'Neither' should be used. Correct: 'Neither of them went'.

Usage of 'last year' places the action in the definite past, requiring Simple Past tense ('visited'), not Present Perfect ('has visited').

'Explain' cannot take the person as a direct object without a preposition. It must be 'explain to me'. Correct: 'Please explain this rule to me'.

The phrase 'be used to' implies familiarity and is followed by a gerund (-ing form), not the infinitive. Correct: 'I am used to driving'.

Since the pronoun is the object of the verb 'see', it strictly should be 'Whom'. Correct: 'Whom do you wish to see?'

'Every one' is a singular subject, so it requires a singular verb. 'Love' should be 'loves'.

This is a dangling modifier. The phrase 'Walking down the street' modifies the subject 'the dog', implying the dog was walking. It should modify 'him'. Correct: 'As he was walking down the street...'.

There is no such word as 'fastly' in standard English. 'Fast' serves as both the adjective and the adverb. Correct: 'He runs fast'.

Wait, 'Slow but sure' is a common idiom (Slow and steady wins the race). However, as an adverb modifying a verb, it might differ. But here 'is' links adjectives. 'Slow' and 'sure' are adjectives. The sentence is grammatically correct. Let's find a different one. 'He runs fastly.' -> Error 'fastly'. Explanation: 'Fast' is both adjective and adverb. There is no word 'fastly'.