Present "know" | I | know | |
Present Continuous "know" | I | am knowing | |
Simple past "know" | I | knew | |
Past Continuous "know" | I | was knowing | |
Present perfect "know" | I | have known | |
Present perfect continuous "know" | I | have been knowing | |
Past perfect "know" | I | had known | |
Past perfect continuous "know" | I | had been knowing | |
Future "know" | I | will know | |
Future continuous "know" | I | will be knowing | |
Future perfect "know" | I | will have known | |
Future perfect continuous "know" | I | will have been knowing |