are the tense of the verbs true in each sentence?
23177
Tense change: previous actions on something that's currently true
9402
Difference in sentence meaning between present continuous and simple present constructions
3435
Using a verb as subject of a sentence
47662
Present perfect for past action with present effect
12190
When can we change the order of the particle and the verb in a phrasal verb?
36746
Can a sentence have two ing-verbs in a row?
153687
What tense should I use to describe something in the past but probably is still true?
51083
Present tense for future events
120012
Future tense in conditional clauses
119011
tense and time and composite sentence
76393
Stative verbs in the continuous form?
100914
present perfect + past simple in the same sentence
106556
What's the meaning of this present perfect sentence?
61433
Are those sentences grammatical?
127184
Present-perfect-tense vs. Simple-past-tense
49506
Can I use a present-tense verb when writing about a past event?
157640
Present Perfect: Yes or No?