Present "think" | I | think | |
Present Continuous "think" | I | am thinking | |
Simple past "think" | I | thought | |
Past Continuous "think" | I | was thinking | |
Present perfect "think" | I | have thought | |
Present perfect continuous "think" | I | have been thinking | |
Past perfect "think" | I | had thought | |
Past perfect continuous "think" | I | had been thinking | |
Future "think" | I | will think | |
Future continuous "think" | I | will be thinking | |
Future perfect "think" | I | will have thought | |
Future perfect continuous "think" | I | will have been thinking |